We are unable to change the account / card payment details on your account as and returnable funds in the first instance need to be issued back to the original payment method. As long as the bank account is the same it will return fine to the original bank account.
If you bank account has changed and no longer exists then any funds that fail after the initial attempt to the original source and bounce back to us, we will then be in contact with you and arrange for a manual transfer back to your new credentials.