The thing is, I get a new phone and sign into use Apple Music on my own account but I backed up my phone and downloaded apps from my previous account so I wouldn’t have to re purchase every app.
Then you are doing exactly what is not permitted without the 90 day lockout.
That is the warning you should see.
It is not expected that you use 2 unique Apple IDs for your purchases. Family Sharing will allow you to share purchases with multiple Apple IDs.
Swapping Apple IDs on a single device gets this behaviour.
You understand I am not speaking for Apple. I am not Apple. I am merely explaining to you what happened.
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