Student Discount for Azure AZ-900 Certification

Hello, I am a student at a public university in Germany (Information Systems).

I followed the steps described here to get the student discount: https://learn.microsoft.com/en-us/credentials/certifications/student-discounts#student-discounts

However, the process does not seem to work as expected. I don’t see any option for student verification, and the exam price has not changed. I also noticed that other students reported the same issue.

What can I do to verify my student status and actually receive the discount?

Thank you!
S.Darsija