Bad attitude no manners

I called regarding a car for sale.. I questions a dumb sales woman to which she could not answer me properly. They told me that should i buy a car and if any thing should go wrong with the car they would not bother because it's their company rules. So when I questioned her further about that she screamed at me and cut the call. When I called back a sales guy answered saying his the manager to which he also cut the call while I was speaking and the dumb sales woman or who ever she was continued screaming from the back ground as if she was in a fight like a trashy woman. Please do not support these people.