Fault with Bergen's Refrigedation and appliances.

My refrigerator was not cold enough and the food in was rotting. I called Bergen's Refrigedation and appliances. They came and cleaned my refrigerator and put gas into it. After a week it was too cold and the vegetables and fruit were freezing. I called them 3 times but they never came to rectify my refrigerator. I had paid them R1880.