EAE Motors do not buy any cars from them

I bought a car at EAE motors in Vereeniging in 01-03-2021 a 335i BMW and on the second week I had issues of the car losing power and reported the issue to the dealer ship and they advised to bring back the car for inspection and I stayed the whole day waiting for them to fix the performance issue, at the end of business I was called to collect the car and drove off, after a couple of minutes the warning light came back and I could not go back cause they where closed, the following day before I could contact them they contacted me and advised that they forgot to put back the engineer cover and I had to bring it back, advised that that i would be only be available over the weekend cause i have already taken a day off, took the car back on Sat and they checked it for about an 1h30 and they advised that the car was fine, drove it that sat and it was fine, on Sun the fault light appeared again, and I only contacted them on Tue and the receptionist advised that she will escalate to her boss and call me back, since then I have not been contacted and the car is now mixing water and oil, and am still paying for it and they expect me to fix it as well.