The documentation’s «Response Message» table contains the following definition of the CardType response parameter:
| Parameter Name | Type | Format | Mandatory | Description |
|---|---|---|---|---|
| CardType | Alpha | 50 | O | The type of card selected by the user e.g. VISA or MASTER
|

But it reality, a SuccessURL response to a bank card payment denotes a MasterCard card as MASTERCARD, not MASTER:
- [AlphaCommerceHub] A
SuccessURLresponse to a bank card payment without a 3D Secure verification - [AlphaCommerceHub] A
SuccessURLresponse to a bank card payment with a 3D Secure verification - [AlphaCommerceHub] A
SuccessURLresponse to a bank card payment without a 3D Secure verification with the ACHSecure Tokenization service («Tokenization Option») enabled