So when i go to add my phone number to my apple id, it says phone number is already in use with a account. So i go to deactivate it from iMessage and it says phone is not registered to iMessage. This is already my trusted phone number so idk pls help.
I don't see this mentioned in any of the online documentation so you may have to rely upon what official Apple Support can tell you.
Click here --> https://support.apple.com/choose-country-region Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service --> "See a list of Apple phone numbers around the world."
Click here --> https://support.apple.com/HT201232
Apple-ID 2FA "This phone number has been … - Apple Community
Phone number is in use with another account.
