the wrong number is linked with my apple id and I cant change it
So I've recently changed from a contract with Vodafone to a Voxi sim. During this change, I was given a new number but with the help of the Voxi team, i was able to transfer my old number to my account. Unfortunately, the new number has been linked with all my apple id/iMessage/facetime and i can't change it back.
iPhone XR, iOS 15