Doesn't know how to speak to customers

This morning I called in to request a list of companies registered with your company so that I can know where to take my car. He advises me of a company with the name of an area in it. My reply was that i am not close to the area and he argues that the company is called that and it is not the area it is in. When he gives me the telephone number it turns out it is in the area I advised him on. No apology from him. I then request a list and advise that I think it is pathetic for you to not have an updated list and he interrupts me to tell me it's not pathetic and gives his reason. He also informs me that I have to call whoever I want to take my car to first to check if they are registered. WHY should I as a customer have to call around to find out who is registered with a company I pay a service for??? I took down his name, advised him of his bad service and he kills the call in my ear! This is NOT acceptable!