Inocompetency

Good day, i bought a car from Auto Pedigree Parow 2 months ago actually i did a trade in with them. Their consultant came to assess my vehicle and too pictures and everything after 2 or 3 days i called to say the deal was approved and i have bring in my vehicle and i was given a new one, then i signed contract and everything and they promised me to fix certain few things on the vehicle that i bought with them in due course and i took the vehicle with that was end of August 2021 and also they promised me to give a new registration number soon together with a spare key. I did a lot of follow ups with the consultant and he kept on say he is waiting on registration number on his side and he give me call as soon as he gets them until this far i havent recieved my new registion number. The other thing is i lost my service book for my previous car. Today i recieved a call from Auto Pedigree Parow branch Ryan telling me that he was not aware that my vehicle was involved in an accident and he threatened to cancel the deal that i already signed a contract for and the first instalment aready went off and he even went as far as saying he need the service book that i told them its lost. I am really dissapointend about the level of incompetency they showed me or the poor service they rendered to me. If they continuing with their intentions i am taking this further i.e. motor Ombudsman and consumer protection