Root Cause

• Incorrect account details provided: The bank account number, IBAN, or other required details were entered incorrectly.

• Account does not exist: The provided account information does not correspond to any existing account at the specified bank.

• Account closed or deactivated: The bank account was closed or deactivated prior to the transaction attempt.

• Payment gateway validation failure: The gateway could not validate the existence of the account with the provided information.

Troubleshooting and Solutions

• Ask the customer to verify and re-enter their correct bank account details.

• Recommend your customer to use an alternative bank account or payment method if the issue persists.

• Retry the transaction after confirming the accuracy and validity of the account details.

• Suggest that your customer contact their bank to confirm that the account is active and available for transactions.

• Implement validation checks on the payment form to ensure account details meet the correct format.