Customers Service Is Crappy! Totatlly unreasonable...

Customers Service Is Crappy! Totatlly unreasonable. Asked 3 times to speak with a supervisor,and all 3 times was told that the supervisor was unavailable and that he/ or she would tell me the same. The issue is that I ordered wheel well molding for a 1977 chevy Malibu. Now as long as its between the years 73-77 the parts are exchangable. Now 1978 is when the body style changed to a smaller fram. 78-83 to be exact. Now I was sold a 1978 malibu part, and told that it would fit on a 1977 chevy Malibu Sedan, but not the coupe.. So I would not be able to receive my refund because I ordered parts for a sedan and not a coupe.?? As long as the car is the same year it does not matter if coupe or sedan. Now on the other hand 1977 &1978 parts are totally different being that the body changed.