Unsatisfied with Car service city Jetpark and Boksburg

Last year November I took my car to Car Service City in Jetpark for a cam belt replacement, I waited for about 5 days for my car to be finished because they had to open the engine and so on. The day I received my car back, the aircon pipe broke so I took it back and to CSC Jetpark and he said I need to bring it back so that he can repair it. I did not took it back as the Branch manager said I cannot bring it back over the weekend because he needs to order a new pipe and it is better to bring it during the week. Now my car is giving me problem again with my clutch and brake fluid(brake fluid is leaking and there is no pressure going to the gearbox). I asked my mechanic friend about it and he asked me when was the last time I changed my pressure plate of my clutch and I said I took my car to CSC Boksburg for clutch pressure plate in August 2017 ( 19 months ago). He said that the this cannot happen so soon after and that CSC definitely did something wrong because they were supposed to change everything as it part of the clutch kit. The problem is that when I took my car back to CSC Boksburg last week they said to repair my clutch will cost R3200 and that was the amount of a new clutch kit.

I am really disappointed in CSC and I am not willing to pay for any of these repairs because they did not repair my car properly the first time.