Faulty car sold

We purchased a 2014 RENAULT DUSTER 1.6 DYNAMIQUE from the Bidvest Mccarthy branch in Garsfontein in June 2017. When we bought the car we were told that it was in perfect condition and there was no faults whatsoever. Less than 2 months after that we felt that there was something wrong with the clutch, as soon as you want to pull away it shutters so you have to either give a lot of petrol or the car starts shaking and dies. Now this is completely unacceptable as we were told that everything was perfect on the car and nothing was wrong but this is clearly a fault that came with the car and that we were not told about. The car then went for its first service ( 28/8/2017) and we were told that there is actually a lot wrong with the clutch and it will cost R 16500 to replace . We refused to pay this as the car was less than 2 months old. We then dealt with Jaco Grobler who asked for the quote to repair the clutch. On the 30/08/2017 he sent the quote for approval to fix the problem to our car. We had to take the car then to the Silverton branch as the Garsfontein branch closed down and moved to Silverton. They then supposedly replaced the clutch. Still the problem wasn't really gone and then we had to learn that the Silverton branch also closed and wherever we phoned no one could help us. Today (14/03/2018) the car went in for its second service and guess what!!!! We were told again that the clutch needs to be replaced!!! How on earth can that be possible barely 6 months later after a "new clutch" was put in. This is totally unacceptable and we want it sorted out. If this is not resolved we will resort to the ombudsman because first of all we have been sold a car under false conditions and secondly that branch probably never replaced the clutch the way they should. This is totally against the consumer protection act and we will not leave this here. We wait to hear from you!!!