Poor customer service and lies

My partner and I purchased a demo car at Kia on 11 January 20 and were promised that the car will be ready by the following Wednesday. The Wednesday, we arrive for collection, the car is not in a good condition, no professional fixing where done instead paints are dripping from the door handles and front bumper. That time, the car is rapped for collection. We said we are not happy and not collecting the car. They then promised to fix again, boom again, paint on some chips on the top roof. I mean really now, what kind of a mechanic do they use that doesn't know how to check the car. Wr eventually said we are not taking the car and opting for an upgrade for a brand new car. The F&I manager gives us a deal worth R220 000 and the contract document comes with a figure that is handwritten a higher amount of R247 000. What is this and we are not provided a chance to read up and question. What level of misrepresentation of information is this? Where is integrity? Why do these people think we are stupid? Why