diff --git a/samples/transaction/start.php b/samples/transaction/start.php
index cb16bea5..6eed6a29 100644
--- a/samples/transaction/start.php
+++ b/samples/transaction/start.php
@@ -89,6 +89,8 @@
             'birthDate' => '14-05-1999',
             'phoneNumber' => '0612345678',
             'emailAddress' => 'test@test.nl',
+            'customerReference' => '456789',//your customer id
+            'customerTrust' => 5, // -10 - 10 how much do you trust this customer? -10 untrustable 10 trusted
         ),
         'address' => array(
             'streetName' => 'Test',
diff --git a/src/Api/Transaction/Transaction.php b/src/Api/Transaction/Transaction.php
index 070b0cc5..0604dc3a 100644
--- a/src/Api/Transaction/Transaction.php
+++ b/src/Api/Transaction/Transaction.php
@@ -30,7 +30,7 @@ class Transaction extends Api
     /**
      * @var int the version of the api
      */
-    protected $version = 5;
+    protected $version = 6;
 
     /**
      * @param string $endpoint