Barclay Auto and Auto King review: I would like to cancel the deal and return the car

Bought a car from Barclay auto and financed through auto king End October. Only received the car on the 21/1/2021. This is due to no 3 point check being done on the car. Even though I advised Barclay Auto as well as Auto king I was not happy with the vehicle. I advised them that the turbo was blowing. The gearbox was leaking oil. There was a knock on the car. The shock mountings was noisy and that the radiator carrier was broken. These are just minor things that was mentioned. Two months later the water pump/thermostat/ and water coolant is now bust and with a cost of R35000 through VW Tokai. The tire pressure light keeps on going on even though I have bought new tires due to worn out 2nd hand tires on the car.
This car has given me endless problems and I would like to know how to go about cancelling the deal as I have not even had this car for 6 months.
Acc: [protected] - Wesbank Finance
Barclay Auto: [protected]
Auto King: [protected]