Last night i bought two map packs for 10 and 5$, today i attempted to buy another 5$ map pack and on both my debit and credit cards it can't authorize. i called my bank (debit) and they tell me that they have not received any payment requests from xbox at all today. the fact that it is two cards that are not working when they both have more than enough money tells me xbox is not communicating with banks etc. correctly today.
The information on both cards i have checked and rechecked, i know because i didn't change any information and it worked the day before and not today