Why can’t I downgrade iCloud storage plan
what do I do if it won’t let me click on”Done” to downgrade my iCloud storage plan?
iPhone 12 Pro Max, iOS 15
Question marked as
See the following from Downgrade or cancel your iCloud+ plan - Apple Support
If you can't click Done, make sure you are signed in with the same Apple ID as your iCloud storage plan. You can also try following these steps on a different device. If you still need help, contact Apple Support.