The error message “Verification codes cannot be sent to phone numbers at this time” usually appears when you try to sign in, ...
You can change your iCloud email address by changing the email address associated with your Apple ID account.
To use Sign In with Apple, you simply need to select the option when asked to log into a participating app or website.
Jeff Carlson writes about mobile technology for CNET. He is also the author of dozens of how-to books covering a wide spectrum ranging from Apple devices and cameras to photo editing software and ...