BlizzCon Pet & Email Change

This is a bit of a weird problem, so this might be the wrong place to try and get it solved -- of so, I apologize, and maybe someone could point me to the correct spot?

I bought the BlizzCon virtual ticket and as such, I should be getting my own little Deathy pet. One problem: I can't remember which email address I used to register for the Virtual Ticket account. There are two possibilities, and unfortunately one of them is now defunct. I think it was the defunct one, but I'm not sure. I haven't seen it show up on the other account though, so I'm pretty sure its the dead address. Also, since its been two weeks since BlizzCon, the ability to login to the website is gone, and I can't (a) verify which email I used (which would have shown up since I told it to remember me) or (b) change the email address if it was the defunct address. I looked but couldn't find a contact number or email address for BlizzCon on the site so I figured my best bet (at least to start) was the Customer Service forum.

Strange I know, but hopefully one that someone can help me out with. Any suggestions appreciated!