Please Note: Under the ‘Transaction’ tab in the dashboard, you can view the specific reason a transaction has failed. Locate the failed transaction and then scroll down read the PSP Data section. Response: 800.100.152  800.100.170  800.100.155   3DS authentication has been declined by the bank for do not honour, transaction not permitted or similar.  Cardholder Actions Cardholder Action … Continue reading Understanding why a 3D Secure transaction has failed