Apple Music blocked for 90 days.

Hello Vermaan,

Welcome to Apple Support Communities!

If we understand your post correctly, you've received a message saying This device has already linked and cannot be transferred for 45 days and you'd like Apple to remove that restriction.

The restriction that has been placed cannot be removed.

When you sign in with your Apple ID on a device and use that device to make purchases or subscribe to Apple services, the device becomes associated with your account.

If the device was previously used by someone else, it's possible you're encountering the error because it's still associated to their Apple ID.

View and remove your associated devices for purchases - Apple Support

This section provides more information about this message: 

When you try to associate another device that was previously associated, you might see a message that says, "This device is associated with another Apple ID. You cannot associate this device with another Apple ID for [number] days." Depending on when you associated your device with your Apple ID, you might need to wait up to 90 days to associate the device with another Apple ID.

This list of associated devices is not the same as the list of devices that you're currently signed in to with your Apple ID. You can see where you're signed in on your Apple ID account page.

Thank you for using Apple Support Communities.

Take care.