Bad Service in Rustenburg Benzetech

I sent my car with a gearbox problem and on the 30th of July they quoted me R1700. It took them a month and when i was called to fetch it after 4 days the did the same thing and i returned it back. After returning it back it took them another month and on the day of collection i was told that if it does the same problem i must bring it to quote me for the clutch plates maybe it is finished. I drove the car 4 days and did the same thing. The owner Jaco is unreachable when calling or whatsapp, their service is very poor and on top of that they don't care.