Rhino Evaluation License Code Doesn't Work

My Rhino Evaluation license code doesn’t work. It says the license key is not valid or expired. But I just got a code. How can i solve this problem i tried everything.

Your eval license expired on 27 October.
I see you’ve tried a couple times to get another free 90-day eval license.
That isn’t supported. Everyone gets one.

It seems you have determined Rhino is a useful tool for you to own…

I invite you to purchase a permanent license at:
Rhino - Buy - Rhinoceros

If you’re a student or faculty, then use the Students and Faculty tab for reduced pricing and proof of EDU status requirements. EDU licenses are permanent, have no maintenance fees, and can be used for commercial work when you leave school. EDU licenses are 80% off compared to a Commercial license.
If you do not buy a license now and need one after you are no longer a student, it will cost $1,000.