XBox -- Worst user experience in a very long time

I was just rejected from logging in to my xbox live account and experienced one of the worst user experiences of all time.

1) have been using this xbox for a long time, but have to re-enter password

2) do so, have to set up additional security to confirm

3) enter my phone number, get sent a confirmation number

4) enter confirmation number, am told I have to separately confirm my phone number by clicking link in sms before xbox will accept the confirmation number they just sent me

5) click link in sms -- go to non-mobile page

6) sign in again to live account

7) have to re-enter phone number to confirm it

8) get sent another confirmation code

9) enter confirmation code on non-mobile website

10) xbox now accepts my previous sms'ed confirmation code

How super f*$%ed up is that? Apparently logging in via Xbox (with password) doesn't verify my identity enough to allow me to confirm a phone number, but logging in online (with the same password) does. Also, if you're going to sms me a link to a page, why the $%^$ isn't it built for mobile devices?