diff --git a/readme.md b/readme.md
index 706d3d4..f088834 100644
--- a/readme.md
+++ b/readme.md
@@ -30,6 +30,7 @@ The variables that can be used are:
 - `PEACH_PAYMENTS_ENTITY_ID_RECURRING`
 - `PEACH_PAYMENTS_TEST_MODE`
 - `PEACH_PAYMENTS_NOTIFICATION_URL`
+- `PEACH_PAYMENTS_WEBHOOK_SECRET_KEY`
 
 ### Migrations
 
@@ -39,6 +40,9 @@ This table can be used in conjunction with Server to Server functionality.
 #### `payment_results`
 This table can be used to store the results of transactions.
 
+#### `payment_events`
+This table can be used to store the event data received from webhooks.
+
 ## Usage
 
 This package provides the ability of using Server to Server and COPYandPay.
@@ -62,8 +66,8 @@ Methods available to Server to Server:
 ```php
 registerCard(CardBuilder $card);
 registerCardDuringPayment(CardBuilder $card);
-repeatedPayment(string $registrationId, int $amount, string $type = PaymentScheme::REPEATED_PAYMENT);
-oneClickPayment(string $registrationId, int $amount);
+repeatedPayment(PaymentCard $card, $owner, int $amount, string $type = PaymentScheme::REPEATED_PAYMENT);
+oneClickPayment(PaymentCard $card, int $amount);
 paymentStatus(string $paymentId);
 deleteCard(string $registrationId);
 
@@ -78,8 +82,8 @@ prepareCheckout(int $amount);
 getCheckoutRegistrationResult($checkoutId);
 registerCard();
 registerCardDuringPayment(int $amount);
-repeatedPayment(string $registrationId, int $amount, string $type = PaymentScheme::REPEATED_PAYMENT);
-paymentStatus(string $checkoutId)
+repeatedPayment(PaymentCard $card, $owner, int $amount, string $type = PaymentScheme::REPEATED_PAYMENT);
+paymentStatus(string $checkoutId);
 ```
 
 To determine the result of a transaction with Peach Payment, you can
diff --git a/src/Api/PaymentMethods/CopyAndPay.php b/src/Api/PaymentMethods/CopyAndPay.php
index e0ecd0a..96c1359 100644
--- a/src/Api/PaymentMethods/CopyAndPay.php
+++ b/src/Api/PaymentMethods/CopyAndPay.php
@@ -2,6 +2,7 @@
 
 namespace IoDigital\PeachPayment\Api\PaymentMethods;
 
+use GuzzleHttp\Exception\ClientException;
 use IoDigital\PeachPayment\Api\Factory\PaymentScheme;
 use IoDigital\PeachPayment\Api\Response;
 use IoDigital\PeachPayment\Api\Setting;
@@ -97,7 +98,7 @@ public function getCheckoutRegistrationResult($path, $owner)
                 'result' => $result,
                 'owner' => $owner
             ]);
-            
+
             return $result;
         }
 
@@ -113,7 +114,8 @@ public function getCheckoutRegistrationResult($path, $owner)
      * and useful card information that you can store for
      * future 'one-click payment' requests.
      *
-     * @param int $amount
+     * @param int  $amount
+     * @param bool $preAuth
      *
      * @return mixed|\Psr\Http\Message\ResponseInterface
      */
@@ -124,7 +126,7 @@ public function registerCardDuringPayment(int $amount, $preAuth = false)
                 'entityId'           => $this->settings->getEntityIdOnceOff(),
                 'amount'             => Currency::paymentFriendlyNumber($amount),
                 'currency'           => 'ZAR',
-                'paymentType'        => $preAuth == true ? self::PREAUTHORISATION : self::DEBIT,
+                'paymentType'        => $preAuth === true ? self::PREAUTHORISATION : self::DEBIT,
                 'createRegistration' => true,
             ],
         ])->getBody()->getContents();
@@ -146,9 +148,10 @@ public function registerCardDuringPayment(int $amount, $preAuth = false)
      * use should use INITIAL_PAYMENT.
      *
      *
-     * @param string $registrationId
-     * @param int  $amount
-     * @param string $type
+     * @param PaymentCard $card
+     * @param             $owner
+     * @param int         $amount
+     * @param string      $type
      *
      * @return mixed|\Psr\Http\Message\ResponseInterface
      */
@@ -191,10 +194,9 @@ public function repeatedPayment(PaymentCard $card, $owner, int $amount, string $
     /**
      * Perform a one click payment with a stored card.
      *
-     * @param string $registrationId
-     * @param int $amount
+     * @param PaymentCard $card
+     * @param int         $amount
      * @return mixed|\Psr\Http\Message\ResponseInterface
-     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function oneClickPayment(PaymentCard $card, int $amount)
     {
diff --git a/src/Api/PaymentMethods/ServerToServer.php b/src/Api/PaymentMethods/ServerToServer.php
index ddb959b..f2806b8 100644
--- a/src/Api/PaymentMethods/ServerToServer.php
+++ b/src/Api/PaymentMethods/ServerToServer.php
@@ -5,8 +5,8 @@
 use GuzzleHttp\Exception\ClientException;
 use IoDigital\PeachPayment\Api\CardBuilder;
 use IoDigital\PeachPayment\Api\Factory\PaymentScheme;
-use IoDigital\PeachPayment\Api\Setting;
 use IoDigital\PeachPayment\Api\Response;
+use IoDigital\PeachPayment\Api\Setting;
 use IoDigital\PeachPayment\Helpers\Currency;
 use IoDigital\PeachPayment\Models\PaymentCard;
 
@@ -24,8 +24,9 @@ public function __construct(Setting $settings = null)
     /**
      * Do a standalone card registration.
      *
+     * @param CardBuilder $card
+     *
      * @return mixed|\Psr\Http\Message\ResponseInterface
-     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function registerCard(CardBuilder $card)
     {
@@ -84,9 +85,10 @@ public function registerCardDuringPayment(CardBuilder $card, int $amount)
      * $type defaults to REPEATED_PAYMENT but on first
      * use should use INITIAL_PAYMENT.
      *
-     * @param string $registrationId
-     * @param int  $amount
-     * @param string $type
+     * @param PaymentCard $card
+     * @param             $owner
+     * @param int         $amount
+     * @param string      $type
      *
      * @return mixed|\Psr\Http\Message\ResponseInterface
      */
@@ -103,7 +105,7 @@ public function repeatedPayment(PaymentCard $card, $owner, int $amount, string $
                         'currency'                => 'ZAR',
                         'paymentType'             => self::DEBIT,
                         'recurringType'           => $type,
-                        'merchantTransactionId'   => class_basename($owner) . '-' . $owner->id
+                        'merchantTransactionId'   => class_basename($owner) . '-' . $owner->id,
                     ],
                 ]
             )->getBody()->getContents();
@@ -118,7 +120,6 @@ public function repeatedPayment(PaymentCard $card, $owner, int $amount, string $
             }
 
             return false;
-
         } catch (ClientException $e) {
             $this->logErrors('repeatedPayment', $e);
 
@@ -131,10 +132,10 @@ public function repeatedPayment(PaymentCard $card, $owner, int $amount, string $
     /**
      * Perform a one click payment with a stored card.
      *
-     * @param string $registrationId
-     * @param int $amount
+     * @param PaymentCard $card
+     * @param int         $amount
+     *
      * @return mixed|\Psr\Http\Message\ResponseInterface
-     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function oneClickPayment(PaymentCard $card, int $amount)
     {
@@ -148,7 +149,7 @@ public function oneClickPayment(PaymentCard $card, int $amount)
                         'amount'                  => Currency::paymentFriendlyNumber($amount),
                         'currency'                => 'ZAR',
                         'paymentType'             => self::DEBIT,
-                        'recurringType'           => 'REPEATED'
+                        'recurringType'           => 'REPEATED',
                     ],
                 ]
             )->getBody()->getContents();
@@ -166,7 +167,6 @@ public function oneClickPayment(PaymentCard $card, int $amount)
      *
      * @param string $paymentId
      * @return mixed|\Psr\Http\Message\ResponseInterface
-     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function paymentStatus(string $paymentId)
     {
@@ -190,7 +190,6 @@ public function paymentStatus(string $paymentId)
      *
      * @param string $registrationId
      * @return mixed|\Psr\Http\Message\ResponseInterface
-     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function deleteCard(string $registrationId)
     {