Can't download xbl content?

I've been trying to download a "games on demand" game from the xbox live marketplace but when I click download now (I do have enough points to buy) a message appears and says "This item isn't available from your current location" now I live in the U.S and I've been able to download games before, and this is just getting a bit ridiculous and I feel like I've wasted money, so any help would be nice.