Unhappy customer

I bought 2015 Ford Fiesta 1.0 Ecoboost from Zenith Auto on the 11 March 2023 through finance called The Car Finance Co. (CFC) around April on my way home to Polokwane the car started to lose power and jerking on the free way. I informed Tom(salesman )and Henry (Manage) about the vehicles. They sent their driver to come a take the vehicle to get it fixed for a month and then the vehicle started the same problem within two weeks. When I wanted to cancel the finance deal Henry asked for another chance to fix the vehicle, then they took the car for three weeks. After a week the vehicle started the same problem. Then he asked the chance to fix the vehicle when I wanted to cancel the finance deal and the finance company employee Jaco convinced me to give them another chance which I did, on the same day Henry bought the car back the same problem started again. I took the car to Ford to get it checked I just found out that Zenith Auto sold me an accident car without disclose it to me. Now I'm stuck with useless car and I'm paying monthly installment. My fellow South Africans don't buy the car from Zenith Auto, they are unprofessional, selfish and greedy. Don't be fooled by smooth talking Tom or else you will regret.