UPDATE YOUR NUMBER
In Password & Security settings, tap Edit. Tap the minus to remove a number, or Add a Trusted Phone Number to add one. Verify using text message or an automated phone call, then enter the code you receive.
In Password & Security settings, tap Edit. Tap the minus to remove a number, or Add a Trusted Phone Number to add one. Verify using text message or an automated phone call, then enter the code you receive.