I have got an answer from the SecurePay support:
Due to how 3D Secure works, you cannot use it in test mode.
If you would like to implement 3D Secure, you will need to do it on the live environment.
cur
I have got an answer from the SecurePay support:
Due to how 3D Secure works, you cannot use it in test mode.
If you would like to implement 3D Secure, you will need to do it on the live environment.
cur