A card payment can be rejected at the time of creation, even before the money is debited. However, the issuing banks do not necessarily provide the card networks (VISA, Mastercard etc) with the precise reason why they rejected a payment. As such, the payment error displayed by the SlimPay API might be inaccurate. Please bear in mind that SlimPay acts merely as a gateway with regards to these error codes.
However, the following codes (included in the API’s payment-issues response) offer some indication about why a card payment was rejected:
| Code | Reason |
|---|---|
| C01 | This account does not exist |
| C02 | Contact your bank for authorisation |
| C03 | Operation cancellation unauthorised |
| C04 | Card expired |
| C05 | Card lost |
| C06 | Card stolen |
| C07 | Check your configuration |
| C08 | Conversion rate is not found |
| C09 | Duplicated transaction |
| C10 | The usage frequency is exceeded |
| C11 | There is an opposition on the account |
| C12 | The bank is unknown |
| C13 | Invalid card number |
| C14 | Invalid PIN code |
| C15 | The transaction can't be processed |
| C16 | Invalid birthdate |
| C17 | Invalid CVV3 |
| C18 | Invalid amount |
| C19 | The amount is exceeded |
| C20 | Security violation |
| C21 | Suspicious card |
| C22 | Transaction cannot be found |
| C23 | Transaction refused by card scheme |
| C24 | Unauthorised transaction |
| C25 | Card not registered |
| C26 | Fraud detected |