I bought a gold pack, and an error occurred

I got the 10,000 REQ points. So I go to the store, and purchased this gold pack, then it delayed a lot, then a textbox saying that an error ocurred during this transaction; or something like that. So it didn’t give me any pack, and it took away all of my REQ points. I was so pissed off, that I turned off the console.
I really hope the 343 Industries guys can help me.
I’m staring to don’t like to play Halo, because of that.