I am trying to enroll for the GitLab Certified Associate course on LevelUp: GitLab.
However, once I enter my card details and press on “Place Your Order”, I get the following pop-up on my browser:
Your card was declined. Your request was in test mode, but used a non test (live) card. For a list of valid test cards, visit: Testing | Stripe Documentation ."
I have tried to execute this payment with my corporate AmEx card and also with my private MasterCard, and none works. It looks to me like a bug on GitLab LevelUp’s end.
Could you please support me with this, so that I can enroll on the course and certification exam?