I need to change my phone number on my app
Please I lost my phone and the SIM card registered with it so I need to login now but having problems logging what should I do to use another phone number
[Edited by Moderator]
iPhone XR, iOS 14
Update your trusted phone number on your Apple ID account page
If you want to add a phone number, click Add a Trusted Phone Number and enter the phone number. Choose to verify the number with a text message or automated phone call, and click Continue. To remove a trusted phone number, click 
next to the phone number you want to remove.
Lost my iPhone and the SIM card registered with it
