who protects the consummer from these *****s

I took my vehicle to Auto tech at 74 Booysens road Booysens.I had to get my flywheel schemed which for R850.00 as per the manager Keanu.He contacted me the next day with a bit of a bad news. My fly wheel needed to be replaced. I agreed to the Job which he quoted me R9000.00 I only drove one day and the car wouldn't select gear (a problem I didn't experienced before.) I phoned and he told me it must be the clutch and it will be replaced as it's still under warranty and the clutch kits they've been receiving was defected. Took it back. They kept the vehicle for 7 days collected DROVE ONE DAY ONLY AND I HAD THE SAME PROBLEM Monday 01-03-2016 I went to them yesterday to find the car still parked outside the same way I parked it 3 days ago and now they telling me their too busy my car have to wait. I WENT BACK THE NEXT DAY AND THE PLACE was under new manage . a Herman and Marco (Motor worx ) was incharge and they have no forwarding details for Autotech. I spoke to Herman new owner and he said he'll fix car after a couple of days I was told that the parts(flywheel and clutch kit) was never replaced as confirmed by Marco new manager and there's nothing they can do to help. What a *******