Outlook.com claims my account has been doing creepy things, so to verify that you may or may not be a creepy person who knows how to use a phone, we need your phone number.
(Never mind that the only thing I’ve done with the account is send a test email to one of my other addresses and the password is a mile long thanks to 1Password)
Outlook.com needs to send my number—which in no way, shape, or form could be a throwaway from Google Voice or a trillion other services—a verification code. Sure, send it.
Sorry you’ve sent too many codes, now you’re double extra locked out with a cherry on top.