Credit Method
Credits a customer's card.
Object Oriented Interface
public function doCredit();
Procedural Interface
inpay_retail_do_credit($res);
Remarks
This method credits a customer's card specified via Card. This type of transaction is NOT based on previous transaction. Some gateways refer to these as "Open" or "Blind" Credits.
TransactionAmount is used to specify the amount you wish to return to the customer's card.
Please see the gateway information in the table of contents to determine if your gateway supports Credit transactions.