Greetings, layluuu!
Thanks for reaching out to the Apple Support Communities! It sounds like you are having issues with switching over to your student Apple Music subscription and I’m happy to help! I recommend taking a look at this thread from uriahkm with a similar issue I am a student and verified it and it wen… - Apple Community. Specifically, check out this Apple Recommended solution from Sparkleberry with the best steps you can take to resolve your issue:
Get an Apple Music Student subscription - Apple Support
About validation
When you join Apple Music as a student, UNiDAYS, a student validation service, confirms that you're enrolled in a degree-granting university or college1.
Periodically, UNiDAYS re-validates your student status. If UNiDAYS finds that you're no longer a student or if you have a Student subscription for a full 48 months, your subscription automatically becomes an Apple Music Individual subscription.
Link to UNiDAYS support via Apple
Have a great day!
You have to make the subscription change on a computer or Android phone. You cannot do it on your iOS device:
If you already subscribe to Apple Music
If you have an Individual subscription to Apple Music, you can change to a Student subscription in the Music app or in iTunes on a computer. You can also change on an Android phone.
If you already subscribe to Apple Music, your Student subscription won't take effect until your current billing cycle comes to an end. You won't be billed at the Student price until your date of renewal.
If you see a message that says "This device is linked to another Apple ID," learn how to disassociate your device.
You can also change the email address that you use as your Apple ID.
From this support article: Get an Apple Music Student subscription - Apple Support
Best,
GB
Apple Music says my account is restricted
