I'm in the same boat. Our listings are in Troncones, but we're lumped in with Zihuatanejo, which is completely and utterly different. Pristine tiwe-warp tropical eco-beach vs overdeveloped bay condo-concrete metropolis. Not the same market in any real way.
My smart pricing recommendations are useless to the point of being annoying, and being lumped with Zihua does not help market us. It's a totally different experience and a whole nother kind of traveler.
Apples and pineapples.
Of course, I can now find no simple way to contact AirBNB directly. Any ideas?