I'm sorry, I don't play MMO's at all, so can someone please define a permaban for me? I thought that a simple ban was the most absolute of lock-outs. Is a ban on an MMO the equivalent of a suspension on this site?
OT: Dude, this really does suck. I know what it's like to lose progress on a game, thanks to corruption of data, accidental deletion of save files and all that, and I don't even want to think about what would have happened if on top of that there was some kind of monthly subscription involved.
I don't know how the world of MMO's work, so I'm definitely not speaking from expereince here. From what I hear though, EVE has, well, a pretty big fanbase. What's one person to them among millions? Your pleas may carry across the sea of complaints by others (undoubtably this will not have been an isolated case) if your lucky, but I wouldn't hold my breath. If it comes to a lawsuit, I daresay you wouldn't have a snowball's chance in hell, but it might be enough to get them to listen to you.
But you've got to think this through. Even if you get your account back, will this happen again? If it does, will you be able to get the same result? Is all the pain you'll have to endure really worth it? I love gaming as much as the next person, but to let it get to me like that, even I'd reconsider it for a second. Maybe it's about time you took up a new hobby, a new MMO. I know pretty sure there's nothing else quite like EVE on the market, but hey, there's a whole world out there of... well, other worlds!
If push comes to shove, I'm rooting for you, but be aware that this sort of thing could happen again, especially, as someone else pointed out, if the person who hacked you is someone that knows you. You know what I would suggust? Even if you got your account back, in whatever form, just leave it for, say, a week, and try something new. You could find other passions, other things that make you happy. You can always go back to EVE, but you could have other hobbies to complement that. That way you'd have something to fall back on should your account get hacked again, to keep your mind occupied while you deal with the stress.
I think I've written enough now, but just think about it. Hope you get some kind of result soon.