I wish to change/update the mobile number where I receive the verification code sent by Google via SMS. However, I am unable to do so despite looking into the Google account settings thoroughly.
I am able to change/update the new number alright, and the old number is no longer visible anywhere under my Google account settings, I still get the verification codes via SMS on the previous number.
I have even tried waiting for a few days to see if the server start registering the new/updated number but to no avail.
I have 2FA enabled on my account in question, and I use a 3rd party app to generate the 2FA codes (1Password). I don't think it should make a difference and have not tried disabling it.
Is there something I am missing here? Or could it be a possible bug? How do I disassociate the old number completely from my Google account?