Each time a transaction is processed through the Paymate system to the bank, the bank returns a 2 digit response code which identifies the reason the payment was approved or declined. A full list of response codes is included below.
Bank Response Codes
| Code | Response Description | Result |
| 00 | Transaction Approved | ✔ |
| 01 | Refer to Issuer | X |
| 02 | Refer to Issuer, special | X |
| 03 | No Merchant | X |
| 04 | Pick Up Card | X |
| 05 | Do Not Honour | X |
| 06 | Error | X |
| 07 | Pick Up Card, Special | X |
| 08 | Honour With Identification | ✔ |
| 09 | Request In Progress | X |
| 10 | Approved For Partial Amount | ✔ |
| 11 | Approved, VIP | ✔ |
| 12 | Invalid Transaction | X |
| 13 | Invalid Amount | X |
| 14 | Invalid Card Number | X |
| 15 | No Issuer | X |
| 16 | Approved, Update Track 3 | ✔ |
| 19 | Re-enter Last Transaction | X |
| 21 | No Action Taken | X |
| 22 | Suspected Malfunction | X |
| 23 | Unacceptable Transaction Fee | X |
| 25 | Unable to Locate Record On File | X |
| 30 | Format Error | X |
| 31 | Bank Not Supported By Switch | X |
| 33 | Expired Card, Capture | X |
| 34 | Suspected Fraud, Retain Card | X |
| 35 | Card Acceptor, Contact Acquirer, Retain Card | X |
| 36 | Restricted Card, Retain Card | X |
| 37 | Contact Acquirer Security Department, Retain Card | X |
| 39 | No Credit Account | X |
| 41 | Lost Card | X |
| 42 | No Universal Account | X |
| 43 | Stolen Card | X |
| 51 | Insufficient Funds | X |
| 54 | Expired Card | X |
| 56 | No Card Record | X |
| 57 | Function Not Permitted to Cardholder | X |
| 59 | Suspected Fraud | X |
| 60 | Acceptor Contact Acquirer | X |
| 62 | Restricted Card | X |
| 63 | Security Violation | X |
| 64 | Original Amount Incorrect | X |
| 66 | Acceptor Contact Acquirer, Security | X |
| 67 | Capture Card | X |
| 82 | CVV Validation Error | X |
| 90 | Cutoff In Progress | X |
| 91 | Card Issuer Unavailable | X |
| 92 | Unable To Route Transaction | X |
| 93 | Cannot Complete, Violation Of The Law | X |
| 94 | Duplicate Transaction | X |
| 96 | System Error | X |
