7b7c4f6f_various_Reason_Codes_indicate___Description
[Reason Code] 254 [Reply Flag (SCMP)] DINVALIDDATA [Possible Action] Submit a follow-on credit by including a request ID in the credit request. A follow-on credit must be requested within 60 days of the authorization. To process stand-alone credits, contact your CyberSource account representative to find out if your processor supports stand-alone credits. [Description] 
Decline - Account is prohibited from processing stand-alone refunds.
CyberSource Support Center - What do the various Reason Codes indicate?
Description