I'm not in a similar situation, I just feel like this information would be very helpful to a lot of people.
1. Get the number of a reviewer. If you have been publishing apps for a while they will call you and give you their number
2. Get the number and email address of one of the higher ups in iTunesConnect. I have one of those, but I obviously am not going to give it out, I think he would probably not be happy to get everyone bypass the staff filter :)
Most important tip is this:
Apple have many different sections for many different tasks. Email the relevant people directly! If you have a banking issue, email banking. If it is iTunesConnect, email them, if it is developer acccount related, mail the developer relations.