Re: "Verification Code Not Received When Adding Phone Number to Apple Account
Could you please help me resolve this issue?"
Seems the verification code would not be sent to the new number you were adding, as Apple would have no proof that it is being added by the owner of the account. The verification code would likely have been sent to a "trusted" phone number that was already listed.
See how to: Get a verification code and sign in with two-factor authentication - Apple Support
Eg: says:
"Whenever you sign in to your Apple Account on a new device or browser, you’ll confirm your identity with your password and a six-digit verification code. There are a few ways you can get a verification code. You can use the code displayed on your trusted device, or get a text or phone call."
See above linked 'Verification code' article for more info.
Eg: also says:
"If you permanently don’t have access to either your trusted devices or your trusted phone number, you can still attempt to recover access to your account.
- Try to sign in to your Apple Account.
- Select “Didn’t Get a Code?” or “Can’t get to your devices?” on the verification code screen.
- Choose “Can’t use [phone number]”.
- If you don’t have access to any trusted phone number on file with your Apple Account, you can initiate the process to recover access to your account. Follow the onscreen steps.
Account recovery might take a few days or longer, depending on the specific account information you can provide to verify your identity. Contacting Apple can’t help speed up the process."
