Finally, in accordance with the 2nd Payment Services Directive, you may be asked to validate your payment via your banking application or any other strong authentication method implemented by your bank card issuer. If authentication must be performed using your banking application, a notification will invite you to open it to validate the transaction securely. If the notification does not appear and your payment requires strong authentication, you can also open the application to validate it. If you are having difficulty authenticating yourself or are simply unsure how to proceed, we invite you to contact your bank.