Cannot get Apple Music

[madmac_1996]

I upgraded my plan to the Get More.  When I try to enroll in the Apple Music subscription that is supposed to be included in this plan, I get an error message saying "This subscription is already being used with a different Apple ID."  I cannot find what Apple ID is associated with my phone number.  I have tried logging out of my Apple ID, uninstalling the Apple Music App, and rebooting my phone.  I still get the same message.  How can I find out what line my Apple ID is connected to and how to get it set up with my line.

[vzw_customer_support]

We definitely understand the importance of taking advantage of your Apple Subscription, and we can certainly try to assist you. Have you ever utilized an Apple Subscription previously, we mean on any devices, or phone numbers, not just the current one. We are also asking not specifically through us, but it could be through Apple directly too *Gert