I am trying to update the Whatsapp application on my iPhone and its requiring a two factor authentication - however, it is messaging an old phone number I no longer have. How do I change this number to my new number in order to update the app?
Sign in to your Apple ID account page and edit your Apple ID details.
https://support.apple.com/en-us/HT201354
Check / edit your trusted phone number.
Sign in to your Apple ID account page and edit your Apple ID details.
https://support.apple.com/en-us/HT201354
Check / edit your trusted phone number.
Changing Old Number on Apple Account
