It's been several weeks and several emails, still no answers. I suspended my account because I suspected that it was hacked. I've been trying to get it reactivated through Facebook reactivation procedure. When I get to the step 2 "Send Security Code", the code never get sent. I logged that problem as a Login problem, as a bug, as a security issue and i never heard anything from them.
You can post a thread here
Also though, I would not recommend it but you can try hijacking someones's request and see if you can get someone to email you. Be clear and not demanding. Be honest as well, if it is necessary work wise for you to get your Facebook account working again tell them.
You can of course phone them: 650-543-4800. I've not tried it but it seem that you can only leave a message there. It's maybe a try to get a response.