...
Troubleshooting Transaction details
See here:
Response Codes:
https://support.payeezy.com/hc/en-us/articles/203730509-First-Data-Payeezy-Gateway-Bank-Response-Codes
AVS Codes
&
here:
http://developer.authorize.net/tools/responsereasoncode/
:
https://support.payeezy.com/hc/en-us/articles/203826909-What-are-the-AVS-response-codes-
CVV Codes:
https://support.payeezy.com/hc/en-us/articles/204504215-CVV2-CVD-CVV-CID-Response-Codes