I'm a bit surprised that role-play isn't one of the things that TER has a review option. I also don't see it advertised by most providers, is it an uncommon request, or so common it's implied? Or is it a "just ask" situation?

in my foreplay as well and it's not been easy but I keep looking the few I did know of are all gone or are in hiding  
if u find someone let us know and I will do the same

Does not everyone?  I think most Dommes are into role play sort of  prerequisite I think.