#2 - June 11, 2010, 7:28 p.m.
I'm very sorry to hear that your account was compromised as the result of a phishing email, Eroron. While this must be an incredibly frustrating situation for you, please know that Blizzard's In-Game Support and Account Services department will do all that they can to help you recover from this. This includes recouping items, characters, and currency that were lost and providing you as much information as possible to assist you with re-securing your account.
On that note, here's a great guide that will walk you through some security steps:
And here's another article from our Knowledge Base that's all about how to tell whether or not an email you received is legitimate:
Many phishing emails in circulation right now are very deceptive, and it's easy to believe they're real and from Blizzard Entertainment. Education is the best weapon, though, so be sure to study up and share this information with your friends. :)
Good luck with your recovery, and please let me know if there's any further I can do to assist.