As you may know, some numbers might trigger certain responses for testing certain responses or behaviors.
For testing 3D Secure on eMerchantPay's side, please note the following:
(These are EMerchantPay constraints):
1.00 Euro → Test case: card enrolled
2.00 Euro → Test case: card not enrolled
3.00 Euro → Test case: unable to determine enrollment
All other amounts will not trigger the 3DSEC flow.