Very disappointed in this company!

My car went in to the Car Care Clinic Centurion on the 14/10/14 !!!! One year ago and still i need to take my car in every second month to repair the so called \NEW COMPRESSOR"every time i go there i need to make an appointment for the air-con to receive new gas! I mean really! the first time your Manager shouted at me as if it is my fault! I mailed there office and they forwarded my email to the area manager Peter"