Poor service from dealership

I bought a H2 in 2019. At first I was very happy with the car. I felt some scratching of the gears and took it in at Haval Pretoria. They told me the wrong oil was in the gearbox??? This was as it came from the factory as the car was new and not even had its first service. Oil was replaced, problem was still there. Took the car back again. Then the selectors was adjusted. Problem still there!!. Took the car back again!!! Then the gearbox and clutch plate was replaced. Problem even WORST!!! Car struggles to get in 1st gear, selects to third gear. When I phoned and informed the service technician (Tim) I was told that the gearbox needed to work a bit and it would be better. Guess what? It has been over 3000km and still not better!!! Now I have to bring the car in again because the service department does not want to sort the problem and the client must just except this!!! The service manager just have a "Sorry to hear about your problem" attitude. Is this the level of service I should expect from Haval Pretoria? I was told by Tim that he will phone me to tell me what is the next step, After more than a month waiting for his call, I had to phone and get feedback. Guess what: There is nothing we can do, bring in the car so that we can take a look. So now 3 hours of my day must be waisted because customer service is not part of your service there at Haval Pretoria