I am living proof that I can happen.
I decided I wanted a silver account a while back (so I could send a car to a friend in Forza), so I signed up. I had to create a new Windows Live ID, which I did then immediately forgot about. I never used that ID again (except, presumably, when signing...
CitizenTony: did you ever get anywhere with this problem? I'm having the exact same issue, and tech support has been useless so far. I learned more from this post than I did in two hours on the phone with them.
Is there anyone I can email? Harass? Let me know.
- sj