We buy cars sold me a car that was in an accident and I was not been told about it and penalised me for returning it after a month I bought it

Dear Peter I bought a car from We buy cars in March 2019 I didn't even make 60 kilometers on that car I had a lot of problem with car when I drove it was always going one side and I kept on asking myself what is wrong with this and the car was very uncomfortable so I decided to call back We buy cars where I bought it after a month in April i told them that I'm not happy with car it's just not right for me and definitely they hv send 1of their buyers to come and inspect the car that guys has confirmed to me that the car was in an accident and it's out of alignment that's why it it was driving on 1side and he asked me if did they told me that the car was in an accident I said no they didn't tell me and my heart was broken because they were supposed to tell me he called the company In front of me to tell them that the car was in an accident and I was not told about ,it was going to be up to me if I buy it or not but they kept that secret from me that's why the car was not in a good condition so they bought the car back from mefor R105 000and I bought it for R126000 so they have penalised me for R21000 I just want to know from you if this is right cause the consumer act says if u buy something within 6months and u are not happy with it u supposed to get your full amount so I would like to know if do I have a case against We buy cars cause I feel like they have ripped me off the car is a Renault Clio model 2014 please help me