3D Secure Not Working

I was using Stripe Plugin V 4.0.7 because new plugins doesn’t support 3D Secure anymore. I updated plugin and now it is not asking for 3D Secure code. I added code to child theme file and tried with my own card which works with 3D Secure at any other webpage but it didn’t ask me code for my page. Could you please help and fix it next update? As I see lots of people has same issue, so 3D Secure must have.

The page I need help with: [log in to see the link]