For whatever reason, when I put my United States phone number into the box in the phone verification, the buttons won’t turn green so I can verify. I’m using safari as my browser, so would that have anything to do with it? If not, I don’t know why its not working.
Try again and you also should try from USA, not other country.
Clear your cache and try again. If you face problem, contact customer support.
Your phone verification is very important.