Nissan South Africa a dissappointment

I have a concern on the Nissan Magnite that I purchased in August 2023 and I reported to Nissan SA. In the 8 months that I had the car I've complained about the breaks 2 weeks into driving the car. I took the car back and they claimed to have cleaned the brakes. In the same breath the problem was still persisting. A month later it was noisy and I went back of which they replaced them. Now again the brakes are making noise. It's 8 months but this has been an issue. When I called the dealership they said something is wrong with Magnite brake pads as there has been complaints. I bought the car at Nissan Hatfield in Pretoria. I was surprised when I went to renew the license disks at Traffic Dept and they told me it's blocked due to the Nissan Magnite that hadn't gone through the Roadworthy test. This is my 5th car and I never bought a car and have to do Roadworthy test. On the 2nd May I took the car in for the same issue, brakes, they told me the disks are worn out. 8 months into me driving the car with the same issue reported thrice clearly I was given a shoddy deal. They knew the first time that the disks are worn out but chose to ignore and tell me they don't cover it on the warranty insurance. Nissan Hatfield knew of the underlying problem from the beginning. They sold the car with all this problems. I wrote to Nissan SA I'm still waiting for a response. They are ignoring me now, no one wants to take responsibility. A reputable company like Nissan could not resolve the issue raised instead they tell me it's not covered under the warranty whereas this was reported at the very first purchase period. Even with the issue about the Roadworthy test they've went quiet on me. I have never had to go for a Roadworthy test after leaving the dealership. It says to me the car did not go for Roadworthy test before sale. I am so dissatisfied and disappointed with Nissan.