Mahindra George - unprofessional used car dealership

I’ve purchased numerous pre-owned vehicles in my time, but the purchase experience when buying a used vehicle for cash at Mahindra in George leaves a lot to be desired. Firstly they are not negotiable on the price at all, secondly they insisted on selling me thousands of Rands worth of extras such as tinting, windscreen treatments, warranty insurance, tracker premiums, etc. Thirdly, there were a few minor items I wanted them to do on the vehicle such as replace worn canopy rubbers, some where grudgingly done and some requests were ignored. Fourthly the purchase process once I’d paid in full took another hour to sign all the paperwork despite having made an appointment, taking photos & a video of me which I’m sure contravenes the POPI act. Fifthly, I had an appointment to collect the vehicle but it wasn't ready, so when I drove it off the floor they had to move other vehicles out the way, it was parked in a tight spot and I didn’t feel special after spending all my hard earned money on one of their pre-owned vehicles. And last but not least, I was assured by Mahindra that I had all the correct paperwork for licensing & registration as it now digital and it was “all on the system.” I spent over an hour in the queue to transfer the vehicle into my name at the traffic department, only to be told the paperwork was incomplete. I had to return to Mahindra and wait several days for them to sort out the missing paperwork, and then when it was sorted I had to spend another hour in the queue again having the vehicle licensed & registered. This was all more than 2 months ago, I have since been trying to get a refund for the costs of licensing & registration & number plates which Mahindra agreed to pay as part of the sales agreement - but so far they have not refunded me despite having to supply them with the paperwork twice now. Honestly, this is the typical used car salesmen attitude we've all been warned about.