You must enter the CORRECT ADDRESS DETAILS for the registered address of your card. If you do not there is a danger your bank will authorise the payment but our security checks will decline it. In this case the bank moves the money into a pending account and although you can see the money has not left the account you cannot access it. Multiple attempts with the same data will result in multiple payments in pending. Your bank will return the funds but it sometimes takes a few days and you should contact them if this happens.