A SERV NOT ALLOWED message usually indicates that the merchant account with the credit card processor may not be set up for a specific card type. Note this message is returned by Vital. Vital can inform you as to why the transactions were declined by contacting them directly.
To resolve this issue, verify the merchant ID/transaction ID (MID/TID) have been entered on your account at Forte by calling your Sales Representative. For support with Vital merchant accounts, contact Vital; otherwise, contact Forte's Customer Service Department at 469-675-9920 x1.