WoW Account Banned, Phising Email ?

I don't know exactly when I started playing WoW, back then level capped only 70 (Burning Crusade) some time after WotLK came out my account was frozen for several months since a lot of irresponsible people who were messing around with another person's account including mine and I had become a victim several times that require me to keep changing the password if not mistaken it's the beginning of the merger WoW account to Battle.net maybe one or few of them was a phising email and it caught me good.

Until the nightmare finally arrived in July 2011, at that time my account was Cataclysm and the patch is 4.2 (Rage of the Fireland), when I was playing I suddenly logged out and couldn't log in again using my email and password. I check my email right away and found there is a notice from Blizz that my account email address has changed and email address that I used earlier was not usable anymore. I reported this immediately to Blizz but the result is not what I expected from what I've experienced before, for this one incident it took 2 days until my account is banned. Before I post this article I check my main char and it was still there so I suspect the thief can't use my account as well. 

At the bottom of the page "Last update 07/13/2011" same date on my email and on the last 2 "Recent Activity", the thief redeem valor points with an ilvl 378 plate bracer that BoE (bind when equipped meaning is that it can be trade or sold at the auction house), while my own is still seen wearing ilvl 353 bracer and can't be equipped with a plate bracer, although I have 2 alts which could be equipped with plates they have enough points to redem and the plan was one of them will redeem with a cloth bracer for my main char while my main redeem with another ilvl 378 gear besides the bracer that BoP (bind when picked up).

Well, eventually I stopped playing WoW since then.