Apple Music says my subscription is linked to another Apple ID account. How do I link it to mine?
My Apple Music subscription says it’s linked to another account. How do I link it to my Apple ID?
Question marked as
Which Apple Music subscription do you have? Individual, or Family?
The Individual plan should not be linked, though the Family plan can be shared within Family Sharing.
If you do have the Family plan, check other members of the Family Sharing group.