Hello sicily240,
Welcome to Apple Support Communities. To get started, please follow these steps to reverify your student status:
In Settings on your iPhone, iPad, or iPod touch
1- Go to Settings > [your name], then tap Subscriptions.
2- Tap Apple Music Membership.
3- Tap "Verify your student status." You'll be redirected to the UNiDAYS website.
4- Follow the prompts to verify your eligibility. If the verification is successful, you'll automatically return to Apple Music and continue your Apple Music student subscription.
Get an Apple Music student subscription
If that didn't work, please reach out to UNiDAYS for further assistance. You can contact them using this link: contact UNiDAYS Support.
We hope this information is useful. Kind regards.