Sold a faulty car

On the 1st of December 2017 I bought the Ford Ranger 2.2 Double Cab from Ford Umhlanga. Then it gave me a clutch and gearbox problems within a good week. Then took it back to the dealership problem was fixed. Recently it gave me an aircon problem with the car being flooded. I took it back again to dealership and it was taken to repairs and they found that the pipe was short which is also a mechanical problem a fault on their side. I am paying instalments but im carless and with no solution and only a suggestion of driving that car with a mechanical problem. I am currently taking taxises to work and varsity which is frustrating and stressful.