just called them mine has gone through,although the guy said it looked like it had tried to go through 37 times,with my constant trying because of the error code,all sorted now only being charged once...although as of yet i havent had a single email of confirmation
Where did you find that screen?!
Have you bought Halo Reach? Is it a special promotion for those that have bought the game?
This is a trick, you are now in their auto billing system !