Account Hacked 6/26/2010, then 6/30/2010.

So my Account was hacked over the weekend, they did the normal stuff and sold everything. Well, they got my account suspended, and had to wait out the suspension. I changed the password ASAP on Sunday when i got back from vacation. I did not log into the account since then. I tried to log in this morning, my password failed. checked my email, and i got more emails from blizzard stating my password had been changed for my battle.net account. Two emails to be exact.

Well, on Sunday I tried to buy an authenticator, it failed due to non available. Checked today after it got hacked again, still no available. ETA on new stock?

Edit:
Also, how did they hack my account a second time? Were they just trying multiple passwords over and over again on my account until one got a hit? That is something I am completely confused about. If I had not logged into WoW, how did they happen to get in to change my password again? I even used a different computer to reset my wow password than the computer i play wow on.