diff --git a/vendor/lib/Sepa.php b/vendor/lib/Sepa.php
index cea3dbe..6eb05a2 100644
--- a/vendor/lib/Sepa.php
+++ b/vendor/lib/Sepa.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Sepa.php 8740 2024-03-28 16:03:37Z markus $
+// $Id: Sepa.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG;
@@ -65,14 +65,14 @@ abstract class Sepa
 	private $payments = [];
 	
 	/**
-	 * constructor
+	 * Constructor
 	 * 
 	 * @param ValidatorFactory $validatorFactory
 	 */
 	abstract public function __construct(ValidatorFactory $validatorFactory);
 	
 	/**
-	 * get type
+	 * Get type
 	 * 
 	 * @return int
 	 */
@@ -82,7 +82,7 @@ public function getType() : int
 	}
 	
 	/**
-	 * get pain mode
+	 * Get pain mode
 	 * 
 	 * @return string
 	 */
@@ -92,7 +92,7 @@ public function getPain() : string
 	}
 	
 	/**
-	 * set message identifier
+	 * Set message identifier
 	 * 
 	 * @param string $id
 	 * @throws SepaException
@@ -114,7 +114,7 @@ public function setId(string $id) : Sepa
 	}
 	
 	/**
-	 * get message identifier
+	 * Get message identifier
 	 * 
 	 * @return string
 	 */
@@ -124,7 +124,7 @@ public function getId() : string
 	}
 	
 	/**
-	 * set initiator
+	 * Set initiator
 	 * 
 	 * @param string $initiator
 	 * @throws SepaException
@@ -142,7 +142,7 @@ public function setInitiator(string $initiator) : Sepa
 	}
 	
 	/**
-	 * get initiator
+	 * Get initiator
 	 * 
 	 * @return string
 	 */
@@ -152,7 +152,7 @@ public function getInitiator() : string
 	}
 	
 	/**
-	 * add payment collection
+	 * Add payment collection
 	 * 
 	 * @param Payment $payment
 	 * @return Sepa
@@ -165,7 +165,7 @@ public function addPayment(Payment $payment) : Sepa
 	}
 	
 	/**
-	 * get payment collections
+	 * Get payment collections
 	 * 
 	 * return array
 	 */
@@ -175,7 +175,7 @@ public function getPayments() : array
 	}
 	
 	/**
-	 * counts the transactions in all collections
+	 * Counts the transactions in all collections
 	 * 
 	 * @return int
 	 */
@@ -190,7 +190,7 @@ public function getNumberOfTransactions() : int
 	}
 	
 	/**
-	 * get control sum
+	 * Get control sum
 	 * 
 	 * @return int
 	 */
@@ -205,7 +205,7 @@ public function getControlSum() : int
 	}
 	
 	/**
-	 * get default scope
+	 * Get default scope
 	 * 
 	 * @return string
 	 */
@@ -215,7 +215,7 @@ public function getDefaultScope() : string
 	}
 	
 	/**
-	 * get default sequence
+	 * Get default sequence
 	 * 
 	 * @return string
 	 */
@@ -225,7 +225,7 @@ public function getDefaultSequence() : string
 	}
 	
 	/**
-	 * check necessary data
+	 * Check necessary data
 	 * 
 	 * @throws SepaException
 	 * @return bool
diff --git a/vendor/lib/Sepa/CreditTransfer.php b/vendor/lib/Sepa/CreditTransfer.php
index 3f73fe2..e456d05 100644
--- a/vendor/lib/Sepa/CreditTransfer.php
+++ b/vendor/lib/Sepa/CreditTransfer.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: CreditTransfer.php 8739 2024-03-28 12:41:21Z markus $
+// $Id: CreditTransfer.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa;
@@ -16,7 +16,7 @@
 class CreditTransfer extends Sepa
 {
 	/**
-	 * the constructor
+	 * Constructor
 	 */
 	public function __construct(ValidatorFactory $validatorFactory)
 	{
diff --git a/vendor/lib/Sepa/DirectDebit.php b/vendor/lib/Sepa/DirectDebit.php
index fed89a8..b1b22a2 100644
--- a/vendor/lib/Sepa/DirectDebit.php
+++ b/vendor/lib/Sepa/DirectDebit.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: DirectDebit.php 8740 2024-03-28 16:03:37Z markus $
+// $Id: DirectDebit.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa;
@@ -16,7 +16,7 @@
 class DirectDebit extends Sepa
 {
 	/**
-	 * the constructor
+	 * Constructor
 	 */
 	public function __construct(ValidatorFactory $validatorFactory)
 	{
diff --git a/vendor/lib/Sepa/Payment.php b/vendor/lib/Sepa/Payment.php
index 427dc85..78d1479 100644
--- a/vendor/lib/Sepa/Payment.php
+++ b/vendor/lib/Sepa/Payment.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Payment.php 8740 2024-03-28 16:03:37Z markus $
+// $Id: Payment.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa;
@@ -99,7 +99,7 @@ class Payment
 	private $validatorFactory;
 	
 	/**
-	 * constructor
+	 * Constructor
 	 * 
 	 * @param ValidatorFactory $validatorFactory
 	 */
@@ -109,7 +109,7 @@ public function __construct(ValidatorFactory $validatorFactory)
 	}
 	
 	/**
-	 * set payment information identifier
+	 * Set payment information identifier
 	 * 
 	 * @param string $id
 	 * @throws PaymentException
@@ -131,7 +131,7 @@ public function setId(string $id) : Payment
 	}
 	
 	/**
-	 * get payment information identifier
+	 * Get payment information identifier
 	 * 
 	 * @return string
 	 */
@@ -141,7 +141,7 @@ public function getId() : string
 	}
 	
 	/**
-	 * set scope
+	 * Set scope
 	 * 
 	 * @param string $scope
 	 * @throws PaymentException
@@ -164,7 +164,7 @@ public function setScope(string $scope) : Payment
 	}
 	
 	/**
-	 * get scope
+	 * Get scope
 	 * 
 	 * @return string
 	 */
@@ -174,7 +174,7 @@ public function getScope() : string
 	}
 	
 	/**
-	 * set sequence
+	 * Set sequence
 	 * 
 	 * @param string $sequence
 	 * @throws PaymentException
@@ -197,7 +197,7 @@ public function setSequence(string $sequence) : Payment
 	}
 	
 	/**
-	 * get sequence
+	 * Get sequence
 	 * 
 	 * @return string
 	 */
@@ -207,7 +207,7 @@ public function getSequence() : string
 	}
 	
 	/**
-	 * set creditor identifier
+	 * Set creditor identifier
 	 * 
 	 * @param string $creditorId
 	 * @throws PaymentException
@@ -229,7 +229,7 @@ public function setCreditorId(string $creditorId) : Payment
 	}
 	
 	/**
-	 * get creditor identifier
+	 * Get creditor identifier
 	 * 
 	 * @return string
 	 */
@@ -239,7 +239,7 @@ public function getCreditorId() : string
 	}
 	
 	/**
-	 * set priority
+	 * Set priority
 	 * 
 	 * @param string $priority
 	 * @throws PaymentException
@@ -262,7 +262,7 @@ public function setPriority(string $priority) : Payment
 	}
 	
 	/**
-	 * get priority
+	 * Get priority
 	 * 
 	 * @return string
 	 */
@@ -272,7 +272,7 @@ public function getPriority() : string
 	}
 	
 	/**
-	 * enable batch booking
+	 * Enable batch booking
 	 * 
 	 * @return Payment
 	 */
@@ -284,7 +284,7 @@ public function enableBatchBooking() : Payment
 	}
 	
 	/**
-	 * disable batch booking
+	 * Disable batch booking
 	 * 
 	 * @return Payment
 	 */
@@ -296,7 +296,7 @@ public function disableBatchBooking() : Payment
 	}
 	
 	/**
-	 * get batch booking
+	 * Get batch booking
 	 * 
 	 * @return bool
 	 */
@@ -306,7 +306,7 @@ public function isBatchBooking() : bool
 	}
 	
 	/**
-	 * set execution date
+	 * Set execution date
 	 * 
 	 * @param string $date (YYYY-MM-DD)
 	 * @throws PaymentException
@@ -328,7 +328,7 @@ public function setDate(string $date) : Payment
 	}
 	
 	/**
-	 * get execution date
+	 * Get execution date
 	 * 
 	 * @return string
 	 */
@@ -338,7 +338,7 @@ public function getDate() : string
 	}
 	
 	/**
-	 * set applicant (debtor or creditor)
+	 * Set applicant (debtor or creditor)
 	 * 
 	 * @param string $name
 	 * @param string $iban
@@ -350,7 +350,7 @@ public function setAccount(string $name, string $iban, string $bic = '') : Payme
 	{
 		$this->setAccountName($name);
 		$this->setAccountIban($iban);
-		if ($bic)
+		if ($bic !== '')
 		{
 			$this->setAccountBic($bic);
 		}
@@ -358,7 +358,7 @@ public function setAccount(string $name, string $iban, string $bic = '') : Payme
 	}
 	
 	/**
-	 * set applicant name
+	 * Set applicant name
 	 * 
 	 * @param string $name
 	 * @throws PaymentException
@@ -376,7 +376,7 @@ public function setAccountName(string $name) : Payment
 	}
 	
 	/**
-	 * get applicant name
+	 * Get applicant name
 	 * 
 	 * @return string
 	 */
@@ -386,7 +386,7 @@ public function getAccountName() : string
 	}
 	
 	/**
-	 * set applicant IBAN
+	 * Set applicant IBAN
 	 * 
 	 * @param string $iban
 	 * @throws PaymentException
@@ -408,7 +408,7 @@ public function setAccountIban(string $iban) : Payment
 	}
 	
 	/**
-	 * get applicant IBAN
+	 * Get applicant IBAN
 	 *
 	 * @return string
 	 */
@@ -418,7 +418,7 @@ public function getAccounIban() : string
 	}
 	
 	/**
-	 * set applicant BIC
+	 * Set applicant BIC
 	 * 
 	 * @param string $bic
 	 * @throws PaymentException
@@ -440,7 +440,7 @@ public function setAccountBic(string $bic = '') : Payment
 	}
 	
 	/**
-	 * get applicant BIC
+	 * Get applicant BIC
 	 * 
 	 * @return string
 	 */
@@ -450,7 +450,7 @@ public function getAccountBic() : string
 	}
 	
 	/**
-	 * set account currency
+	 * Set account currency
 	 * 
 	 * @param string $currency
 	 * @throws PaymentException
@@ -473,7 +473,7 @@ public function setAccountCurrency(string $currency) : Payment
 	}
 	
 	/**
-	 * get applicant currency
+	 * Get applicant currency
 	 * 
 	 * @return string
 	 */
@@ -483,7 +483,7 @@ public function getAccountCurrency() : string
 	}
 	
 	/**
-	 * set ultimate applicant
+	 * Set ultimate applicant
 	 * 
 	 * @param string $ultimateName
 	 * @return Payment
@@ -496,7 +496,7 @@ public function setUltimateName(string $ultimateName) : Payment
 	}
 	
 	/**
-	 * get ultimate applicant
+	 * Get ultimate applicant
 	 * 
 	 * @return string
 	 */
@@ -506,7 +506,7 @@ public function getUltimateName() : string
 	}
 	
 	/**
-	 * add transaction
+	 * Add transaction
 	 * 
 	 * @param Transaction $transaction
 	 * @return Payment
@@ -519,7 +519,7 @@ public function addTransaction(Transaction $transaction) : Payment
 	}
 	
 	/**
-	 * get payment transactions
+	 * Get payment transactions
 	 * 
 	 * return array
 	 */
@@ -529,7 +529,7 @@ public function getTransactions() : array
 	}
 	
 	/**
-	 * counts the transactions in this payment collection
+	 * Counts the transactions in this payment collection
 	 * 
 	 * @return int
 	 */
@@ -539,7 +539,7 @@ public function getNumberOfTransactions() : int
 	}
 	
 	/**
-	 * get control sum
+	 * Get control sum
 	 * 
 	 * @return int
 	 */
@@ -554,7 +554,7 @@ public function getControlSum() : int
 	}
 	
 	/**
-	 * check necessary payment data
+	 * Check necessary payment data
 	 * 
 	 * @param bool $isDirectDebit
 	 * @throws PaymentException
diff --git a/vendor/lib/Sepa/Transaction.php b/vendor/lib/Sepa/Transaction.php
index 0ab644a..1e3564a 100644
--- a/vendor/lib/Sepa/Transaction.php
+++ b/vendor/lib/Sepa/Transaction.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Transaction.php 7657 2019-04-12 21:26:58Z markus $
+// $Id: Transaction.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa;
@@ -117,7 +117,7 @@ class Transaction
 	private $validatorFactory;
 	
 	/**
-	 * constructor
+	 * Constructor
 	 * 
 	 * @param ValidatorFactory $validatorFactory
 	 */
@@ -127,7 +127,7 @@ public function __construct(ValidatorFactory $validatorFactory)
 	}
 	
 	/**
-	 * set instruction identifier
+	 * Set instruction identifier
 	 * 
 	 * @param string $id
 	 * @throws TransactionException
@@ -149,7 +149,7 @@ public function setId(string $id) : Transaction
 	}
 	
 	/**
-	 * get instruction identifier
+	 * Get instruction identifier
 	 * 
 	 * @return string
 	 */
@@ -159,7 +159,7 @@ public function getId() : string
 	}
 	
 	/**
-	 * set end-to-end identifier
+	 * Set end-to-end identifier
 	 * 
 	 * @param string $endToEndId
 	 * @throws TransactionException
@@ -181,7 +181,7 @@ public function setEndToEndId(string $endToEndId) : Transaction
 	}
 	
 	/**
-	 * get end-to-end identifier
+	 * Get end-to-end identifier
 	 * 
 	 * @return string
 	 */
@@ -191,7 +191,7 @@ public function getEndToEndId() : string
 	}
 	
 	/**
-	 * set debtor/creditor name
+	 * Set debtor/creditor name
 	 * 
 	 * @param string $name
 	 * @throws TransactionException
@@ -209,7 +209,7 @@ public function setName(string $name) : Transaction
 	}
 	
 	/**
-	 * get debtor/creditor name
+	 * Get debtor/creditor name
 	 * 
 	 * @return string
 	 */
@@ -219,7 +219,7 @@ public function getName() : string
 	}
 	
 	/**
-	 * set IBAN
+	 * Set IBAN
 	 * 
 	 * @param string $iban
 	 * @throws TransactionException
@@ -241,7 +241,7 @@ public function setIban(string $iban) : Transaction
 	}
 	
 	/**
-	 * get IBAN
+	 * Get IBAN
 	 * 
 	 * @return string
 	 */
@@ -251,7 +251,7 @@ public function getIban() : string
 	}
 	
 	/**
-	 * set BIC
+	 * Set BIC
 	 * 
 	 * @param string $bic
 	 * @throws TransactionException
@@ -273,7 +273,7 @@ public function setBic(string $bic) : Transaction
 	}
 	
 	/**
-	 * get BIC
+	 * Get BIC
 	 * 
 	 * @return string
 	 */
@@ -283,7 +283,7 @@ public function getBic() : string
 	}
 	
 	/**
-	 * set amount
+	 * Set amount
 	 * 
 	 * @param float $amount
 	 * @throws TransactionException
@@ -301,7 +301,7 @@ public function setAmount(float $amount) : Transaction
 	}
 	
 	/**
-	 * get amount
+	 * Get amount
 	 * 
 	 * @return int
 	 */
@@ -311,7 +311,7 @@ public function getAmount() : int
 	}
 	
 	/**
-	 * set currency
+	 * Set currency
 	 * 
 	 * @param string $currency
 	 * @throws TransactionException
@@ -334,7 +334,7 @@ public function setCurrency(string $currency) : Transaction
 	}
 	
 	/**
-	 * get currency
+	 * Get currency
 	 * 
 	 * @return string
 	 */
@@ -344,7 +344,7 @@ public function getCurrency() : string
 	}
 	
 	/**
-	 * set ultimate debtor or creditor
+	 * Set ultimate debtor or creditor
 	 * 
 	 * @param string $ultimateName
 	 * @return Transaction
@@ -357,7 +357,7 @@ public function setUltimateName(string $ultimateName) : Transaction
 	}
 	
 	/**
-	 * get ultimate debtor or creditor
+	 * Get ultimate debtor or creditor
 	 * 
 	 * @return string
 	 */
@@ -367,7 +367,7 @@ public function getUltimateName() : string
 	}
 	
 	/**
-	 * set purpose code
+	 * Set purpose code
 	 * 
 	 * @param string $purpose
 	 * @throws TransactionException
@@ -390,7 +390,7 @@ public function setPurpose(string $purpose) : Transaction
 	}
 	
 	/**
-	 * get purpose code
+	 * Get purpose code
 	 * 
 	 * @return string
 	 */
@@ -400,7 +400,7 @@ public function getPurpose() : string
 	}
 	
 	/**
-	 * set unstructured reference text
+	 * Set unstructured reference text
 	 * 
 	 * @param string $reference
 	 * @return Transaction
@@ -413,7 +413,7 @@ public function setReference(string $reference) : Transaction
 	}
 	
 	/**
-	 * get unstructured reference text
+	 * Get unstructured reference text
 	 * 
 	 * @return string
 	 */
@@ -423,7 +423,7 @@ public function getReference() : string
 	}
 	
 	/**
-	 * set mandate identifier
+	 * Set mandate identifier
 	 * 
 	 * @param string $mandateId
 	 * @throws TransactionException
@@ -445,7 +445,7 @@ public function setMandateId(string $mandateId) : Transaction
 	}
 	
 	/**
-	 * get mandate identifier
+	 * Get mandate identifier
 	 * 
 	 * @return string
 	 */
@@ -455,7 +455,7 @@ public function getMandateId() : string
 	}
 	
 	/**
-	 * set mandate date
+	 * Set mandate date
 	 * 
 	 * @param string $mandateDate
 	 * @throws TransactionException
@@ -477,7 +477,7 @@ public function setMandateDate(string $mandateDate) : Transaction
 	}
 	
 	/**
-	 * get mandate date
+	 * Get mandate date
 	 * 
 	 * @return string
 	 */
@@ -487,7 +487,7 @@ public function getMandateDate() : string
 	}
 	
 	/**
-	 * set mandate changed
+	 * Set mandate changed
 	 * 
 	 * @return Transaction
 	 */
@@ -499,7 +499,7 @@ public function setMandateChanged() : Transaction
 	}
 	
 	/**
-	 * get mandate changed
+	 * Get mandate changed
 	 * 
 	 * @return bool
 	 */
@@ -509,7 +509,7 @@ public function hasMandateChanged() : bool
 	}
 	
 	/**
-	 * set original mandate identifier
+	 * Set original mandate identifier
 	 * 
 	 * @param string $originalMandateId
 	 * @throws TransactionException
@@ -531,7 +531,7 @@ public function setOriginalMandateId(string $originalMandateId) : Transaction
 	}
 	
 	/**
-	 * get original mandate identifier
+	 * Get original mandate identifier
 	 * 
 	 * @return string
 	 */
@@ -541,7 +541,7 @@ public function getOriginalMandateId() : string
 	}
 	
 	/**
-	 * set original mandate IBAN
+	 * Set original mandate IBAN
 	 * 
 	 * @param string $originalMandateIban
 	 * @throws TransactionException
@@ -563,7 +563,7 @@ public function setOriginalMandateIban(string $originalMandateIban) : Transactio
 	}
 	
 	/**
-	 * get original mandate IBAN
+	 * Get original mandate IBAN
 	 * 
 	 * @return string
 	 */
@@ -573,7 +573,7 @@ public function getOriginalMandateIban() : string
 	}
 	
 	/**
-	 * set original mandate BIC
+	 * Set original mandate BIC
 	 * 
 	 * @param string $originalMandateBic
 	 * @throws TransactionException
@@ -595,7 +595,7 @@ public function setOriginalMandateBic(string $originalMandateBic) : Transaction
 	}
 	
 	/**
-	 * get original mandate BIC
+	 * Get original mandate BIC
 	 * 
 	 * @return string
 	 */
@@ -605,7 +605,7 @@ public function getOriginalMandateBic() : string
 	}
 	
 	/**
-	 * check necessary transaction data
+	 * Check necessary transaction data
 	 * 
 	 * @param bool $isDirectDebit
 	 * @throws TransactionException
diff --git a/vendor/lib/Sepa/Validator/Checksum.php b/vendor/lib/Sepa/Validator/Checksum.php
index 4cef77d..cf52f5d 100644
--- a/vendor/lib/Sepa/Validator/Checksum.php
+++ b/vendor/lib/Sepa/Validator/Checksum.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Checksum.php 7657 2019-04-12 21:26:58Z markus $
+// $Id: Checksum.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa\Validator;
@@ -13,7 +13,7 @@
 trait Checksum
 {
 	/**
-	 * calculate check digit (ISO 13616:2007)
+	 * Calculate check digit (ISO 13616:2007)
 	 *
 	 * @param string $checkSum
 	 * @return int
diff --git a/vendor/lib/Sepa/Validator/CreditorId.php b/vendor/lib/Sepa/Validator/CreditorId.php
index 69c3d40..511e8ac 100644
--- a/vendor/lib/Sepa/Validator/CreditorId.php
+++ b/vendor/lib/Sepa/Validator/CreditorId.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: CreditorId.php 7657 2019-04-12 21:26:58Z markus $
+// $Id: CreditorId.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa\Validator;
@@ -20,7 +20,7 @@ public function isValid($subject) : bool
 		{
 			return false;
 		}
-		// Stelle 7-35 (BBAN), Stelle 1-2 (Laendercode; numerisch konvertiert), Stelle 3-4 (Pruefziffer)
+		// Position 7-35 (BBAN), Position 1-2 (Country code; numerically converted), Position 3-4 (Check digit)
 		$checkSum = substr($subject, 7) . strval(ord($subject[0]) - 55) . strval(ord($subject[1]) - 55) . substr($subject, 2, 2);
 		
 		return ($this->calculateCheckDigit($checkSum) === 97);
diff --git a/vendor/lib/Sepa/Validator/Iban.php b/vendor/lib/Sepa/Validator/Iban.php
index 27e4a32..3cefb74 100644
--- a/vendor/lib/Sepa/Validator/Iban.php
+++ b/vendor/lib/Sepa/Validator/Iban.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Iban.php 7657 2019-04-12 21:26:58Z markus $
+// $Id: Iban.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa\Validator;
@@ -20,7 +20,7 @@ public function isValid($subject) : bool
 		{
 			return false;
 		}
-		// Stelle 5-34, Stelle 1-2 (Laendercode; numerisch konvertiert), Stelle 3-4 (Pruefziffer)
+		// Position 5-34, Position 1-2 (Country code; numerically converted), Position 3-4 (Check digit)
 		$checkSum = substr($subject, 4) . strval(ord($subject[0]) - 55) . strval(ord($subject[1]) - 55) . substr($subject, 2, 2);
 		
 		return ($this->calculateCheckDigit($checkSum) === 97);
diff --git a/vendor/lib/Sepa/Xml.php b/vendor/lib/Sepa/Xml.php
index 3cf5ed7..1a3a4e7 100644
--- a/vendor/lib/Sepa/Xml.php
+++ b/vendor/lib/Sepa/Xml.php
@@ -1,5 +1,5 @@
 <?php
-// $Id: Xml.php 8742 2024-03-28 16:17:50Z markus $
+// $Id: Xml.php 8745 2024-03-28 17:08:31Z markus $
 declare(strict_types=1);
 
 namespace MG\Sepa;
@@ -17,19 +17,19 @@
 class Xml
 {
 	/**
-	 * format XML without indentation and extra space
+	 * Format XML without indentation and extra space
 	 * @var bool
 	 */
 	private $compression = false;
 	
 	/**
-	 * temp file
+	 * Temp file
 	 * @var string
 	 */
 	private $tmpFile = null;
 	
 	/**
-	 * final file
+	 * Final file
 	 * @var string
 	 */
 	private $fnlFile = null;
@@ -41,7 +41,7 @@ class Xml
 	private $sepa = null;
 	
 	/**
-	 * create XML instance
+	 * Create XML instance
 	 * 
 	 * @param Sepa $sepa
 	 */
@@ -51,7 +51,7 @@ public function __construct(Sepa $sepa)
 	}
 	
 	/**
-	 * delete temp file
+	 * Delete temp file
 	 */
 	public function __destruct()
 	{
@@ -59,7 +59,7 @@ public function __destruct()
 	}
 	
 	/**
-	 * to string
+	 * To string
 	 * 
 	 * @return string
 	 */
@@ -69,19 +69,19 @@ public function __toString() : string
 	}
 	
 	/**
-	 * disable nicely formats output with indentation and extra space
+	 * Disable nicely formats output with indentation and extra space
 	 * 
 	 * @return Xml
 	 */
 	public function compress() : Xml
 	{
-		$this->compression = false;
+		$this->compression = true;
 		
 		return $this;
 	}
 	
 	/**
-	 * get XML
+	 * Get XML
 	 * 
 	 * @return string
 	 */
@@ -95,7 +95,7 @@ public function get() : string
 	}
 	
 	/**
-	 * save XML to file
+	 * Save XML to file
 	 * 
 	 * @param string $filename
 	 * @return bool
@@ -145,7 +145,7 @@ public function save(string $filename) : bool
 	}
 	
 	/**
-	 * download XML
+	 * Download XML
 	 *
 	 * @param string $filename
 	 * @return void
@@ -165,7 +165,7 @@ public function download(string $filename = '') : void
 	}
 	
 	/**
-	 * generate the XML file
+	 * Generate the XML file
 	 * 
 	 * @throws XmlException
 	 * @return Xml
@@ -199,7 +199,7 @@ public function create() : Xml
 	}
 	
 	/**
-	 * validate XML
+	 * Validate XML
 	 * 
 	 * @throws XmlException
 	 * @return bool
@@ -208,7 +208,7 @@ public function validate() : bool
 	{
 		libxml_use_internal_errors(true);
 		
-		$xsdFile = $this->getPainFile();
+		$xsdFile = $this->getSchemaFile();
 		if ($this->tmpFile === null)
 		{
 			$this->create();
@@ -221,7 +221,12 @@ public function validate() : bool
 		return $xml->isValid();
 	}
 	
-	public function getPainFile() : string
+	/**
+	 * Get schema file
+	 * 
+	 * @return string
+	 */
+	public function getSchemaFile() : string
 	{
 		$xsdFile = __DIR__ . '/../../schema/' . $this->sepa->getPain() . '.xsd';
 		if (!is_file($xsdFile))
@@ -232,7 +237,7 @@ public function getPainFile() : string
 	}
 	
 	/**
-	 * get errors
+	 * Get errors
 	 * 
 	 * @return array
 	 */
@@ -247,7 +252,7 @@ public function getErrors() : array
 	}
 	
 	/**
-	 * get last error
+	 * Get last error
 	 * 
 	 * @return Exception
 	 */
@@ -262,7 +267,7 @@ public function getLastError() : Exception
 	}
 	
 	/**
-	 * destroy temp file
+	 * Destroy temp file
 	 */
 	private function cleanup()
 	{
@@ -274,7 +279,7 @@ private function cleanup()
 	}
 	
 	/**
-	 * generate document root and group header
+	 * Generate document root and group header
 	 * 
 	 * @param \XMLWriter $xml
 	 */
@@ -329,7 +334,7 @@ private function generateDocument(\XMLWriter $xml)
 	}
 	
 	/**
-	 * generate payment information
+	 * Generate payment information
 	 * 
 	 * @param Payment $payment
 	 * @param \XMLWriter $xml
@@ -460,7 +465,7 @@ private function generatePayment(Payment $payment, \XMLWriter $xml, int $count)
 	}
 	
 	/**
-	 * generate transaction information
+	 * Generate transaction information
 	 * 
 	 * @param Transaction $transaction
 	 * @param \XMLWriter $xml
@@ -504,7 +509,7 @@ private function generateTransaction(Transaction $transaction, \XMLWriter $xml)
 			$xml->startElement('MndtRltdInf');
 			$xml->writeElement('MndtId', $transaction->getMandateId());
 			$xml->writeElement('DtOfSgntr', $transaction->getMandateDate());
-			if ($transaction->hasMandateChanged()) // Aenderung an Mandat
+			if ($transaction->hasMandateChanged()) // Mandate changed
 			{
 				$xml->writeElement('AmdmntInd', 'true');
 				$xml->startElement('AmdmntInfDtls');
@@ -577,7 +582,7 @@ private function generateTransaction(Transaction $transaction, \XMLWriter $xml)
 	}
 	
 	/**
-	 * convert string into epc conform
+	 * Convert string into epc conform
 	 * 
 	 * @param string $string
 	 * @param int $maxlen
@@ -585,7 +590,7 @@ private function generateTransaction(Transaction $transaction, \XMLWriter $xml)
 	 */
 	private function formatString(string $string, int $maxlen = 0) : string
 	{
-		// EPC 2009 erlaubt:
+		// EPC 2009 allowed:
 		// [A-Za-z0-9\+\?\/\-:\(\)\.,' ]
 		$map = [
 			'Ä' => 'Ae', 'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Å' => 'A', 'Ă' => 'A', 'Æ' => 'A',
@@ -614,7 +619,7 @@ private function formatString(string $string, int $maxlen = 0) : string
 	}
 	
 	/**
-	 * format amount
+	 * Format amount
 	 * 
 	 * @param int $amount
 	 * @return string