Fishy practices, bad communications and systems.

Silver Lakes Branch. Wanted to purchase a car, it was Gold Dekra rated and A graded (can be financed). Went through the whole financing process (including a hard request on my credit score!). Accepted the Offer To Purchase. They had to service the car as per financing (at least that is how I understand it). Day of delivery I was notified that there was an issue found during the service that disqualifies it from financing. I asked for a detailed report on what the issue was. Never received it. They asked me if there is any other car I am interested in. They have nothing. More than a month passes. On Sunday afternoon I see the car re-listed, Gold Certificate, A rating (ready for finance), with a R3000 discount. Since I loved the car, I immediately wanted to reserve it again. The website refused to reserve it on my profile stating "You have already reserved this vehicle". I send the salesperson a message on Whatsapp. Since it was past closing time on a Sunday he says he will get back to me first thing. Monday during my lunch break I see that a sale is in progress on the car. I immediately contacted the salesperson, he says that he will check. My website profile state that I have no cars. I contacted the service line and they say the car has been reserved by someone else. So TWICE this car has been taken from me due to fishy circumstances and terrible systems and bad communication. The only reason I am adamant to purchase the car is because I cannot find a similar deal on that specific colour and milage, nevermind at that price. So I am super keen for this specific car.