Horrible service in defective car

I bought a chery Tiggo 7 pro max in April from Chery Northcliff. On 16 May while driving i got a gearbox failure message and the car switched off. I took a picture and sent it to the dealership and they asked me to bring the car in so they could run diagnostics. They ended up keeping the car over night and said it was the battery and they needed to charge it. The issue still persisted!! When it went in for its 5000km service i complained about the issue again and i was told they checked everything and there are no problems.. The issue then started occurring more frequently. When this happens the car goes into limp mode. I have also noticed that it completely skips gears. It goes from D2 to D4 then to D6. When the car is standstill it’s in D2. I have spoke to the service manager at the dealership and took the car in for them to have a look at it again! This time providing them with pictures and videos. I was told its low voltage and they changed the battery. After fetching my car, i drove not even 8km and the failure popped up again and the car didnt want to move. I had to switch it off and on again before it did anything. I contacted the dealership immediately and on my way to drop the car back it happened again!

I was then told that they need to change transmission control which did not fix the problem! They then contacted chery head office which advised to change a modular, which was then actioned and guess what, the issue still isn’t resolved!!!

I am now being told that they are going to change the gearbox.

I have only had the car for 8 months. One should not have to change the gearbox for a car that is new and only has approx 7000km mileage!!

I am tired of the back and forth and being told they need to follow these processes and ‘its the best you going to get’ !!! I did not pay for a defective car and when is Chery going to accept and take responsibility for selling me a defective vehicle!!

MIOSA is probably the next step since the service is terrible!!