Simplilearn — Refund rejected

I subscribed for the PRINCE2 certification course from simplilearn. I read all terms and condition after subscribing also read the refund policy which mentioned on their website and after login.
Certification link will be activated after I passed the simulation test which is minimum 60% marks. When I passed any of the simulation test with 60% then I will get the online exam link.
I passed one simulation test with 81.67% and second simulation test with 68.33%. So according to the rule I passes both the simulation test even after one test I got the online exam link.
I attended the online exam and I got 53% (I failed). So I requested them for refund. Now they are listing out the terms and condition in mail that I have to pass both the simulation test with 80% of marks which is not mentioned anywhere (60% is there).