My account was hacked last month too and 3,200 pts stolen. I reclaimed the account, talked to XBL and decided against filing a complaint, bc you account gets suspended. While XBL decided to do the complaint anyway, my account got locked for 5 days, got it back and two days XBL cancelled by Family Pack by mistake. So then I had to wait another 7 days to get codes to my missing months back. Also, still havent received my 3,200 pts back.
Morale of the story...think before you pick up the phone and call the idiots at XBL.
Also, my EA account and XBL account had two completely different passwords.