Wrong phone number in my Device info/iMessage/FaceTime
There’s my older phone number mentioned in my devise info which I can’t remove or change. While I have the correct desired phone number in my Apple ID’s name,phone number, email option. And for that reason I can’t even use iMessage and FaceTime because it has that older number too, which I can’t change here too. I found an older discussion where someone mention to sign out and sign back in. I tried that process but still didn’t work.
someone please help me out for how to change my older phone number to my new number from device info, FaceTime and iMessage
iPhone 13 mini