[quote name='gokuofheaven']Actually when it says that you've been qualified for $10 credit it clearly says that it's towards XBox Live Cards/Points. You just have to read the rest of the sentence.[/QUOTE]
When I viewed I had $10 in credit, it was while I was claiming that $2 MP3 credit, and all that popped up was something along the lines of "Video Game/Software Download Credit: $10". It didn't verify that it was only towards MS points on that particular part of the site.
I remember now, but when it was telling me I had $10 in video game download credit, I didn't recall how I got it (other people didn't know either). It makes sense now, as I had forgotten about that MS points credit that came with game purchases a month or so ago.