Just to clear this up.

Depending on server type, you have these options in this situation:

US REALM - contact gm's, they supposedly help with pvp situations, excessive would mean weeks here, but the policies differ and I have absolutely nothing to say its not a few days in US, so you could get lucky.

EU REALM- try and find a way around it, Gm's wont help - Naysayer, feel free to browse the eu forums for someone who had gm intervention in a pvp situation, then post evidence here. That way you have a credible arguement instead of just.. naysaying. I will happily get gm clarification if you want some once I get home, as I know a few in real life what with the cork office being across the path from where I work, or could ticket one in game.

Either way, the simplest option is to gank the bastard. Over and over and over. There have to be some level 70's on that server that will help you, there's no way the entire thing could be filled with gobshites. If it is, transfer the hell off it.