I've been trying all day to purchase some DLC for Dead Space 2. Whenever I try and Add Points, whether online here or on my Xbox, it says it cannot access my selected purchase instrument. I have three separate payment accounts on there including a MasterCard, a visa debit, and a pay pal account linked directly to my bank account. Every single option is declined and I have used all three of these options this very day onilne and in the real world to purchase other things. It must be a problem on xbox's end and I cannot find a way to contact them directly and there is currently now ambassador service available. Help!