it must be the mobile phone activation thats making this happen :/
is it possible to get a free mobile phone from any the phone companies ? and by free i mean free im compeltly broke just spent over $190.00 for a suite for my sisters wedding and i dont have a job :/
tie google voice to your land line and you should be able to use your google voice number to recieve texts.
Google voice is free until at least the end of the year
That said, I don't think this'll work. You shouldn't be able to send an activation code to a mobile number UNLESS that mobile number was pre-registered with your account, otherwise anyone could just put in their own number and steal your account.
Sounds to me like your account got hacked and someone changed your password
I'd go https://account.live.com/password/reset