CMH under-handed sales tactics

I approached CMH Nissan Hillcrest in KZN about a 2nd hand Audi A5 they had advertised for a rather attractive price. Although the vehicle had by now been on their floor for over 4 months, they assured me that nothing was wrong with it, and they promised to send me their 101-point inspection report. It took two business days, but nothing on the report indicated anything serious. They also sent me various pictures, which except for a scratch over the RF fender, didn't indicate any serious problems and that all tyres still had much thread left. The dealership gave me the vehicle's VIN number, and with that I had to contact Audi myself for the service history. Audi confirmed FSH, BUT also that the rear lock mechanism, the signal horn and the lower guide links were replaced. I then also paid for a report from wheelindex.co.za which revealed that the vehicle had been at panel beaters in Margate in 2016 - which CMH said they had no knowledge of (which I doubt since a simple Lightstone report would've showed that up).

Since I live in Pretoria, I needed to make sure about the vehicle's condition, and I insisted on the full Dekra Technical Inspection. I still had a decent hope that with CMH being a reputable company that they wouldn't deal in under-handed sales tactics. The manager didn't want to pay or even contribute towards paying the cost of R2026, so I paid with it from my own pocket.

The Dekra full Technical Inspection revealed a number of semi-serious issues like at least one tyre that had no thread left, but the most prominent aspect that emerged was that virtually the entire vehicle had been repainted! This could be indicative of a very serious accident. Noticing that a vehicle had been repainted is not an advanced s****, and most (if not all) car salesman know how to check for this.

I then spoke to the manager, Daniel Pakiri. He was unapologetic, and said they didn't know these things about the vehicle. He also said he had only been on the job as manager for a month. He refused to take any responsibility for not disclosing vital information, neither did he offer an apology for wasting my money on the Dekra inspection report. When I pointed this out to him, he only then half-heartedly apologised, and later offered to reimburse me 50% of the Dekra costs. However, now it seems that he first wants a copy of the report before making any payment - which I of course do not trust him to honour.

My gripes are the following: - Why did CMH not reveal to me that the vehicle had (1) been in an accident before, and (2) had been repainted? Surely a customer deserves to know these vital aspects as part of their consideration on whether to purchase a vehicle or not? - Why did CMH knowingly played along that I paid Dekra over R2000 for the technical inspection, when they knew the truth would come out? - Why did CMH not at least given me some indication of the vehicle's service history? Instead I was only sent a picture of a paper that contained the vehicle's VIN number. Fortunately I knew I could contact Audi with that. - In what way is the fact that Daniel Pakiri has been the manager for only a month a valid excuse? He still carries the responsibility for what happens under him, and in a month's time he surely is supposed to know everything important about the vehicles on the floor, especially the ones who had been there for a long time?