Refund payment: <form method='get'><input name='payment_id' value='tr_xxx'/><input type='submit' /></form><p><a href="http://prestations.reims-coursiers.fr/mollie-api-php/examples/payments/payments/create-payment.php">Create a payment</a><br><a href="http://prestations.reims-coursiers.fr/mollie-api-php/examples/payments/payments/create-ideal-payment.php">Create an iDEAL payment</a><br><a href="http://prestations.reims-coursiers.fr/mollie-api-php/examples/payments/payments/list-payments.php">List payments</a><br></p>