ERR_3DS_CALLBACK_FAILED
Description
3D Secure verification was completed but the payment was not successful.
Common Causes
- Customer cancelled 3D Secure verification
- Bank rejected the transaction
- Network timeout during 3D Secure redirect
- Insufficient funds or card limit exceeded
Resolution
- Customer should retry with a different card
- Check order notes for detailed failure reason
- Verify the card supports 3D Secure (most Turkish bank cards do)