Poor customer service

I recently bought a new car installed with the cartrack device at the dealership. The installation certificate has the dealership details instead of mine, I have been calling cartrack everyday for two weeks now trying to change the ownership. The only thing I have been getting is empty promises that someone from their dealership department will call me back. I'm disappointed and very frustrated at the moment, the only thing I want is for them to remove their device and have a reputable company install another one. I don't think I can trust cartrack with my car anymore because from the beginning they are making promises they can't keep.