I struck the same as described in OP a couple of years ago. Yes, regardless of other methods of contract for 2FA, I recall even when I thought I had it licked,

I struck the same as described in OP a couple of years ago. Yes, regardless of other methods of contract for 2FA, I recall even when I thought I had it licked, the process reverted back to asking for a phone number to contract. I tried with a different number of browsers and eventually the latest up to date machine with the same failure.