diff --git a/README.md b/README.md
index b9a6860..8ce8de2 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Table of Contents
       * [Payment Page](#payment-page)
          * [Purchase (redirect)](#purchase-redirect)
          * [Payment Page Complete Payment](#payment-page-complete-payment)
+         * [Payment Page Recurring Profiles](#payment-page-recurring-profiles)
       * [Notification Handler](#notification-handler)
 
 # mPAY24 Driver for Omnipay v3
@@ -111,6 +112,12 @@ but could be carried forward through the session instead.
 
 The `/pay` endpoint handles the actual payment.
 
+The above form does not redirect the user to a payment page.
+Instead, it sends the card details to the gateway, with the token as a key.
+So in the next step, the gateway will already have the card details and the
+merchant site will just use the pre-generated token to reference them when
+completing the payment.
+
 ### Payment Using Token
 
 ```php
@@ -265,6 +272,54 @@ Alternatively a range of payment methods can be supplied as a JSON string:
 
 The transaction is completed in exactly the same way as for the seamless payments.
 
+### Payment Page Recurring Profiles
+
+The gateway supports two types of profile: a single recurring payment profile for a customer,
+and up to 20 interactive profiles for each customer.
+The *Payment Page* API will support only ONE of these profile types at a time.
+This driver presently support ONLY recurrent payment profiles for *Payment Page*.
+
+To create or update a customer's recurring payment profile, when making a purchase,
+set the `createCard` flag and provide a `customerId`:
+
+    'createCard' => true,
+    'customerId' => 'cust-12345',
+
+On completing the payment, you can check if the customer recurring profile was created
+or updated by checking the profile status:
+
+    $profileWasCreatedOrUpdates = $completeResult->isProfileChanged();
+
+If this returns true, then it means the payment details for the current transaction
+have been saved against the customer ID.
+Use the customer ID as though it were a card reference when making a backend payment.
+
+A customer ID can be used to make a recurring payment (an offline payment) liek this:
+
+```php
+$gateway = Omnipay::create('Mpay24_Backend');
+
+// Set the usual merchant ID and test mode flags.
+
+$request = $gateway->purchase([
+    'amount' => '9.99',
+    'currency' => 'EUR',
+    'transactionId' => 'new-transaction-id',
+    'description' => 'Recurring Payment Description',
+    'card' => [
+        'name' => 'Customer Name',
+    ],
+    'notifyUrl' => 'https://omnipay.acadweb.co.uk/mpay24/notify.php?foo=bar&fee=fah', // mandatory
+    'language' => 'de',
+    // Either
+    'customerId' => 'cust-12345',
+    // or
+    'cardReference' => 'cust-12345',
+]);
+```
+
+This will return the details of the successful payment, or error details if not successful.
+
 ## Notification Handler
 
 The notification handler will accept notification server requests,
diff --git a/src/BackendGateway.php b/src/BackendGateway.php
new file mode 100644
index 0000000..4efb8b0
--- /dev/null
+++ b/src/BackendGateway.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Omnipay\Mpay24;
+
+use Omnipay\Mpay24\Messages\Backend\ListProfilesRequest;
+use Omnipay\Mpay24\Messages\Backend\DeleteProfileRequest;
+use Omnipay\Mpay24\Messages\FetchTransactionRequest;
+use Omnipay\Mpay24\Messages\Backend\PurchaseRequest;
+use Omnipay\Mpay24\Messages\AcceptNotification;
+
+class BackendGateway extends PaymentPageGateway
+{
+    /**
+     * @param  array $parameters
+     * @return PurchaseRequest
+     */
+    public function purchase(array $parameters = [])
+    {
+        return $this->createRequest(PurchaseRequest::class, $parameters);
+    }
+
+    /**
+     * @param  array $parameters
+     * @return PurchaseRequest
+     */
+    public function authorize(array $parameters = [])
+    {
+        return $this->purchase($parameters);
+    }
+
+    /**
+     * @param  array $parameters
+     * @return ListProfilesRequest
+     */
+    public function listProfiles(array $parameters = [])
+    {
+        return $this->createRequest(ListProfilesRequest::class, $parameters);
+    }
+
+    /**
+     * @param  array $parameters
+     * @return DeleteProfileRequest
+     */
+    public function deleteProfile(array $parameters = [])
+    {
+        return $this->createRequest(DeleteProfileRequest::class, $parameters);
+    }
+
+    /**
+     * @param  array $parameters
+     * @return DeleteProfileRequest
+     */
+    public function deleteCard(array $parameters = [])
+    {
+        return $this->deletePofile($parameters);
+    }
+}
diff --git a/src/ConstantsInterface.php b/src/ConstantsInterface.php
index e9a3c60..18dcdb0 100644
--- a/src/ConstantsInterface.php
+++ b/src/ConstantsInterface.php
@@ -165,6 +165,7 @@ interface ConstantsInterface
     const PTYPE_PAYOLUTION  = 'PAYOLUTION';
     const PTYPE_SOFORT      = 'SOFORT';
     const PTYPE_MASTERPASS  = 'MASTERPASS';
+    const PTYPE_PROFILE     = 'PROFILE';
 
     /**
      * Brands.
@@ -221,4 +222,15 @@ interface ConstantsInterface
     const CSS_NAME_WEB      = 'WEB';
     const CSS_NAME_MOBILE   = 'MOBILE';
     const CSS_NAME_MODERN   = 'MODERN';
+
+    /**
+     *
+     */
+
+    const PROFILE_STATUS_IGNORED    = 'IGNORED';
+    const PROFILE_STATUS_USED       = 'USED';
+    const PROFILE_STATUS_ERROR      = 'ERROR';
+    const PROFILE_STATUS_CREATED    = 'CREATED';
+    const PROFILE_STATUS_UPDATED    = 'UPDATED';
+    const PROFILE_STATUS_DELETED    = 'DELETED';
 }
diff --git a/src/Messages/AbstractMpay24Request.php b/src/Messages/AbstractMpay24Request.php
index e4bc573..f8e7fe0 100644
--- a/src/Messages/AbstractMpay24Request.php
+++ b/src/Messages/AbstractMpay24Request.php
@@ -7,6 +7,11 @@
 use Omnipay\Mpay24\ConstantsInterface;
 use Mpay24\Mpay24;
 use Mpay24\Mpay24Config;
+use Money\Money;
+use Money\Number;
+//use Money\Currencies\ISOCurrencies;
+use Money\Currency;
+use Money\Parser\DecimalMoneyParser;
 
 abstract class AbstractMpay24Request extends AbstractRequest implements ConstantsInterface
 {
@@ -135,9 +140,38 @@ protected function getShippingAddressData()
     }
 
     /**
-     * @return array
+     * Return the items basket/cart as data with mPAY24 key names.
      */
-    protected function getShoppingCartData()
+    public function getShoppingCartData(): array
     {
+        $data = [];
+
+        if (! empty($this->getItems())) {
+            $itemNumber = 0;
+
+            foreach ($this->getItems() as $item) {
+                $itemNumber++;
+
+                $currencyCode = $this->getCurrency();
+                $currency = new Currency($currencyCode);
+
+                $moneyParser = new DecimalMoneyParser($this->getCurrencies());
+
+                $number = Number::fromString($item->getPrice());
+
+                $money = $moneyParser->parse((string) $number, $currency);
+
+                $data[$itemNumber] = [
+                    'number' => $itemNumber,
+                    'productNr' => $item->getName(),
+                    'description' => $item->getDescription() ?: $item->getName(),
+                    'quantity' => $item->getQuantity(),
+                    'itemPrice' => $item->getPrice(), // Major units
+                    'amount' => $money->getAmount(), // Minor units
+                ];
+            }
+        }
+
+        return $data;
     }
 }
diff --git a/src/Messages/Backend/DeleteProfileRequest.php b/src/Messages/Backend/DeleteProfileRequest.php
new file mode 100644
index 0000000..ae2d306
--- /dev/null
+++ b/src/Messages/Backend/DeleteProfileRequest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Omnipay\Mpay24\Messages\Backend;
+
+use Omnipay\Mpay24\Messages\AbstractMpay24Request;
+use Mpay24\Mpay24Order;
+
+class DeleteProfileRequest extends AbstractMpay24Request
+{
+    /**
+     * The data key names are from the mPAY24 spec, but lower camelCase.
+     *
+     * @return array
+     * @throws InvalidRequestException
+     * @throws \Omnipay\Common\Exception\InvalidRequestException
+     */
+    public function getData()
+    {
+        return [
+            'customerId' => $this->getCustomerId() ?? $this->getCardReference(),
+            'profileId' => $this->getProfileId(),
+        ];
+    }
+
+    /**
+     * @param array $data
+     * @return ResponseInterface|ListProfilesResponse
+     */
+    public function sendData($data)
+    {
+        $mpay24 = $this->getMpay();
+
+        $result = $mpay24->deleteProfile(
+            $data['customerId'],
+            $data['profileId']
+        );
+
+        $resultData = [
+            'operationStatus' => $result->getStatus(),
+            'returnCode' => $result->getReturnCode(),
+        ];
+
+        return new Response($this, $resultData);
+    }
+}
diff --git a/src/Messages/Backend/ListProfilesRequest.php b/src/Messages/Backend/ListProfilesRequest.php
new file mode 100644
index 0000000..109e812
--- /dev/null
+++ b/src/Messages/Backend/ListProfilesRequest.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Omnipay\Mpay24\Messages\Backend;
+
+use Omnipay\Mpay24\Messages\AbstractMpay24Request;
+use Mpay24\Mpay24Order;
+
+class ListProfilesRequest extends AbstractMpay24Request
+{
+    /**
+     * The data key names are from the mPAY24 spec, but lower camelCase.
+     *
+     * @return array
+     * @throws InvalidRequestException
+     * @throws \Omnipay\Common\Exception\InvalidRequestException
+     */
+    public function getData()
+    {
+        return [
+            'customerId' => $this->getCustomerId() ?? $this->getCardReference(),
+            'expiredBy' => $this->getExpiredBy(),
+            'begin' => $this->getBegin(),
+            'size' => $this->getSize(),
+        ];
+    }
+
+    /**
+     * @param array $data
+     * @return ResponseInterface|ListProfilesResponse
+     */
+    public function sendData($data)
+    {
+        $mpay24 = $this->getMpay();
+
+        $result = $mpay24->listCustomers(
+            $data['customerId'],
+            $data['expiredBy'],
+            $data['begin'],
+            $data['size']
+        );
+
+        $resultData = [
+            'operationStatus' => $result->getStatus(),
+            'returnCode' => $result->getReturnCode(),
+            'profiles' => $result->getProfiles(),
+        ];
+
+        return new ListProfilesResponse($this, $resultData);
+    }
+}
\ No newline at end of file
diff --git a/src/Messages/Backend/ListProfilesResponse.php b/src/Messages/Backend/ListProfilesResponse.php
new file mode 100644
index 0000000..4e0a6e0
--- /dev/null
+++ b/src/Messages/Backend/ListProfilesResponse.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Omnipay\Mpay24\Messages\Backend;
+
+/**
+ * Lists matching profiles (customers).
+ */
+
+use Omnipay\Mpay24\Messages\AbstractMpay24Response;
+use Omnipay\Mpay24\Messages\NotificationValuesTrait;
+
+class ListProfilesResponse extends AbstractMpay24Response
+{
+    use NotificationValuesTrait;
+
+    /**
+     * Returns an array of arrays containing "customerID" and "updated" elements.
+     */
+    public function getProfiles()
+    {
+        return $this->getDataItem('profiles');
+    }
+}
diff --git a/src/Messages/Backend/PurchaseRequest.php b/src/Messages/Backend/PurchaseRequest.php
new file mode 100644
index 0000000..ea68c92
--- /dev/null
+++ b/src/Messages/Backend/PurchaseRequest.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace Omnipay\Mpay24\Messages\Backend;
+
+use Omnipay\Mpay24\Messages\AbstractMpay24Request;
+use Mpay24\Mpay24Order;
+
+class PurchaseRequest extends AbstractMpay24Request
+{
+    /**
+     * The data key names are from the mPAY24 spec, but lower camelCase.
+     *
+     * @return array
+     * @throws InvalidRequestException
+     * @throws \Omnipay\Common\Exception\InvalidRequestException
+     */
+    public function getData()
+    {
+        // TODO: validate mandatory params.
+
+        // A single shopping cart item can be provided.
+        // Just take the first item from the basket.
+
+        $items = $this->getShoppingCartData();
+
+        if (! empty($items)) {
+            $item = array_shift($items);
+
+            $shoppingCartItem = [
+                'number' => $item['number'],
+                'productNr' => $item['productNr'],
+                'description' => $item['description'],
+                'quantity' => $item['quantity'],
+                'amount' => $item['amount'],
+            ];
+        } else {
+            $shoppingCartItem = [];
+        }
+
+        return [
+            'tid' => $this->getTransactionId(),
+            'payment' => [
+                'amount' => $this->getAmountInteger(),
+                'currency' => $this->getCurrency(),
+                'useProfile' => true,
+            ],
+            'additional' => [
+                'customerID' => $this->getCustomerId() ?: $this->getCardReference(),
+                'customerName' => $this->getCustomerName(),
+                'order' => [
+                    'description' => $this->getDescription(),
+                    'shoppingCart' => [
+                        'item' => $shoppingCartItem,
+                    ],
+                ],
+                'confirmationUrl' => $this->getNotifyUrl(),
+                'language' => strtoupper($this->getLanguage()),
+            ],
+        ];
+    }
+
+    /**
+     * @param array $data
+     * @return ResponseInterface|PurchaseResponse
+     */
+    public function sendData($data)
+    {
+        $mpay24 = $this->getMpay();
+
+        $result = $mpay24->payment(
+            static::PTYPE_PROFILE,
+            $data['tid'],
+            $data['payment'],
+            $data['additional']
+        );
+
+        $resultData = [
+            'operationStatus' => $result->getStatus(),
+            'returnCode' => $result->getReturnCode(),
+            'errNo' => $result->getErrNo(),
+            'errText' => $result->getErrText(),
+            'transactionReference' => $result->getMpayTid(),
+        ];
+
+        return new Response($this, $resultData);
+    }
+}
diff --git a/src/Messages/Backend/Response.php b/src/Messages/Backend/Response.php
new file mode 100644
index 0000000..d5c471f
--- /dev/null
+++ b/src/Messages/Backend/Response.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Omnipay\Mpay24\Messages\Backend;
+
+/**
+ * Data provided is the raw data from the API, with upper-case keys.
+ */
+
+use Omnipay\Mpay24\Messages\AbstractMpay24Response;
+use Omnipay\Mpay24\Messages\NotificationValuesTrait;
+
+class Response extends AbstractMpay24Response
+{
+    use NotificationValuesTrait;
+}
diff --git a/src/Messages/NotificationValuesTrait.php b/src/Messages/NotificationValuesTrait.php
index 6ddcc6f..9a4b8bd 100644
--- a/src/Messages/NotificationValuesTrait.php
+++ b/src/Messages/NotificationValuesTrait.php
@@ -139,6 +139,11 @@ public function getProfileId()
         return $this->getDataItem('PROFILE_ID');
     }
 
+    public function getCardReference()
+    {
+        return $this->getCustomerId();
+    }
+
     // Status of the customer profile
     // TODO: lists as constants
     public function getProfileStatus()
@@ -173,4 +178,24 @@ public function isPending()
     {
         return $this->getTransactionState() === static::TRANSACTION_STATE_RESERVED;
     }
+
+    public function isProfileCreated()
+    {
+        return $this->getProfileStatus() === static::PROFILE_STATUS_CREATED;
+    }
+
+    public function isProfileUpdated()
+    {
+        return $this->getProfileStatus() === static::PROFILE_STATUS_UPDATED;
+    }
+
+    public function isProfileDeleted()
+    {
+        return $this->getProfileStatus() === static::PROFILE_STATUS_DELETED;
+    }
+
+    public function isProfileChanged()
+    {
+        return $this->isProfileCreated() || $this->isProfileUpdated() || isProfileDeleted();
+    }
 }
diff --git a/src/Messages/PaymentPage/PurchaseRequest.php b/src/Messages/PaymentPage/PurchaseRequest.php
index 717e2e7..bbb155e 100644
--- a/src/Messages/PaymentPage/PurchaseRequest.php
+++ b/src/Messages/PaymentPage/PurchaseRequest.php
@@ -3,6 +3,7 @@
 namespace Omnipay\Mpay24\Messages\PaymentPage;
 
 use Omnipay\Mpay24\Messages\AbstractMpay24Request;
+use Omnipay\Common\Exception\InvalidRequestException;
 use Mpay24\Mpay24Order;
 
 class PurchaseRequest extends AbstractMpay24Request
@@ -12,32 +13,6 @@ class PurchaseRequest extends AbstractMpay24Request
      */
     protected $paymentMethodCount = 0;
 
-    /**
-     * Return the items basket/cart as data with mPAY24 key names.
-     */
-    public function getItemsData(): array
-    {
-        $data = [];
-
-        if (! empty($this->getItems())) {
-            $itemNumber = 0;
-
-            foreach ($this->getItems() as $item) {
-                $itemNumber++;
-
-                $data[$itemNumber] = [
-                    'number' => $itemNumber,
-                    'productNr' => $item->getName(),
-                    'description' => $item->getDescription() ?: $item->getName(),
-                    'quantity' => $item->getQuantity(),
-                    'itemPrice' => $item->getPrice(),
-                ];
-            }
-        }
-
-        return $data;
-    }
-
     /**
      * The data key names are from the mPAY24 spec, but lower camelCase.
      *
@@ -47,6 +22,31 @@ public function getItemsData(): array
      */
     public function getData()
     {
+        // Defaults for manual override.
+
+        $useProfile = $this->getUseProfile();
+        $customerId = $this->getCardReference() ?? $this->getCustomerId();
+
+        if ($this->getCreateCard()) {
+            // The application would like to create or update a card reference,
+            // also known as customerID, for recurrent payments.
+
+            $useProfile = true;
+
+            if (empty($customerId)) {
+                throw new InvalidRequestException('The customerId or cardReference parameter is required');
+     
+                // Note: we don't want this as it will fill up the account
+                // with many random customer IDs, hence throwing the exception..
+
+                // A specified cardReference has not been supplied (which is
+                // recommended) so we need to make one up.
+                // Format is 1 to 32 characters.
+
+                $customerId = bin2hex(random_bytes(16));
+            }
+        }
+
         return [
             'price' => $this->getAmount(),
             'currency' => $this->getCurrency(),
@@ -60,12 +60,12 @@ public function getData()
             'paymentType' => $this->getPaymentType(),
             'brand' => $this->getBrand(),
             'paymentMethods' => $this->getPaymentMethods(),
-            'useProfile' => $this->getUseProfile(),
-            'customerId' => $this->getCustomerId(),
+            'useProfile' => (bool)$useProfile,
+            'customerId' => $customerId,
             'customerName' => $this->getCustomerName(),
             'billingAddress' => $this->getBillingAddressData(),
             'shippingAddress' => $this->getShippingAddressData(),
-            'items' => $this->getItemsData(),
+            'shoppingCart' => $this->getShoppingCartData(),
         ];
     }
 
@@ -91,8 +91,6 @@ public function sendData($data)
     {
         $data = $this->xmlEncodeData($data);
 
-        $mpay24 = $this->getMpay();
-
         $mdxi = new Mpay24Order();
         $mdxi->Order->Tid = $data['tid'];
 
@@ -132,8 +130,8 @@ public function sendData($data)
 
         // Populate the optional basket.
 
-        if (! empty($data['items'])) {
-            foreach ($data['items'] as $itemNumber => $item) {
+        if (! empty($data['shoppingCart'])) {
+            foreach ($data['shoppingCart'] as $itemNumber => $item) {
                 $mdxi->Order->ShoppingCart->Item($itemNumber)->Number = $itemNumber;
                 $mdxi->Order->ShoppingCart->Item($itemNumber)->ProductNr = $item['productNr'];
                 $mdxi->Order->ShoppingCart->Item($itemNumber)->Description = $item['description'];
@@ -142,6 +140,8 @@ public function sendData($data)
                 $mdxi->Order->ShoppingCart->Item($itemNumber)->ItemPrice = $item['itemPrice'];
                 //$mdxi->Order->ShoppingCart->Item($itemNumber)->ItemPrice->setTax(1.23);
                 //$mdxi->Order->ShoppingCart->Item($itemNumber)->Price = 10.00;
+                // Example os styling. The product on a red background.
+                //$mdxi->Order->ShoppingCart->Item($itemNumber)->Description->setStyle('background-color: red');
             }
         }
 
@@ -155,14 +155,14 @@ public function sendData($data)
         // https://docs.mpay24.com/docs/working-with-the-mpay24-php-sdk-redirect-integration
         // Other supported objects (in order): BillingAddr, ShippingAddr
 
-        if (isset($data['useProfile'])) {
-            $mdxi->Order->Customer->setUseProfile($data['useProfile'] ? 'true' : 'false');
-        }
-
         if (isset($data['customerId'])) {
             $mdxi->Order->Customer->setId($data['customerId']);
         }
 
+        if (isset($data['useProfile'])) {
+            $mdxi->Order->Customer->setUseProfile($data['useProfile'] ? 'true' : 'false');
+        }
+
         if (isset($data['customerName'])) {
             $mdxi->Order->Customer = $data['customerName'];
         }
@@ -200,6 +200,8 @@ public function sendData($data)
 
         //echo '<textarea style="width: 50%; height: 20em;">'; echo $mdxi->toXml(); echo '</textarea>';
 
+        $mpay24 = $this->getMpay();
+
         $paymentPage = $mpay24->paymentPage($mdxi);
 
         $data['redirectUrl'] = $paymentPage->getLocation();
@@ -210,6 +212,9 @@ public function sendData($data)
         return new Response($this, $data);
     }
 
+    /**
+     * Add a single payment method to the mdxi object.
+     */
     protected function addPaymentType(Mpay24Order $mdxi, string $paymentType, string $brand)
     {
         if ($this->paymentMethodCount === 0) {
diff --git a/src/ParameterTrait.php b/src/ParameterTrait.php
index be796a8..121d1ff 100644
--- a/src/ParameterTrait.php
+++ b/src/ParameterTrait.php
@@ -456,4 +456,76 @@ public function setPClass($value)
     {
         return $this->setParameter('pClass', $value);
     }
+
+    /**
+     * @return string
+     */
+    public function getCreateCard()
+    {
+        return $this->getParameter('createCard');
+    }
+
+    /**
+     * @param  string $value
+     * @return $this
+     */
+    public function setCreateCard($value)
+    {
+        return $this->setParameter('createCard', $value);
+    }
+
+    /**
+     * Parameters for selecting profiles to list.
+     */
+
+    /**
+     * @return string
+     */
+    public function getExpiredBy()
+    {
+        return $this->getParameter('expiredBy');
+    }
+
+    /**
+     * @param  string $value
+     * @return $this
+     */
+    public function setExpiredBy($value)
+    {
+        return $this->setParameter('expiredBy', $value);
+    }
+
+    /**
+     * @return string
+     */
+    public function getBegin()
+    {
+        return $this->getParameter('begin');
+    }
+
+    /**
+     * @param  string $value
+     * @return $this
+     */
+    public function setBegin($value)
+    {
+        return $this->setParameter('begin', $value);
+    }
+
+    /**
+     * @return string
+     */
+    public function getSize()
+    {
+        return $this->getParameter('size');
+    }
+
+    /**
+     * @param  string $value
+     * @return $this
+     */
+    public function setSize($value)
+    {
+        return $this->setParameter('size', $value);
+    }
 }
diff --git a/src/PaymentPageGateway.php b/src/PaymentPageGateway.php
index e69074a..865941d 100644
--- a/src/PaymentPageGateway.php
+++ b/src/PaymentPageGateway.php
@@ -85,4 +85,22 @@ public function paymentMethods(array $parameters = [])
     {
         return $this->createRequest(PaymentMethodsRequest::class, $parameters);
     }
+
+    /**
+     * This is the same as purchase, but injects the createCard flag.
+     */
+    public function createCard(array $parameters = [])
+    {
+        $parameters['createCard'] = true;
+
+        return $this->purchase($parameters);
+    }
+
+    /**
+     * This is the same as createCard, but injects the createCard flag.
+     */
+    public function updateCard(array $parameters = [])
+    {
+        return $this->createCard($parameters);
+    }
 }