Bad service and false pretences

Bought a car from EGM on the 30/8/2024, before we bought it we said the car had an oil leak which they would have fixed. There were a few other problems that we had to keep returning the car for them to fix. We then again 2 x reported the oil leak. 4 months after buying the car there was a problem again, 4 days before we were set to leave on Xmas holiday. We then had to follow up over and over after hearing that the oil cooler, oil pump, radiator and possibly the top gasket has to be replaced. We had to cancel our holiday as we had no vehicle. The vehicle has now been with them since the 17th Dec 2024, last week we followed up again only to get a reply they will come back to me. Today 7 Jan 2025 we still have no feedback and NO car. We want to return the car as the oil problem was there from before we bought the car. The salesman lead us under false pretences as he stated the car only had one owner in Bloemfontein only to find out that we are probably the 4th or 5th owner. The list goes on! The owner of EGM said if we want to return it we can but need to go through ombudsman and that it will be very costly. What about our costs, we have almost weekly taken the car back to have things fixed??? After we reported the faults just after we bought the vehicle. We had tow bar put on??? We had to cancel our holiday???? No what? We have no vehicle?? This isn’t good service