Very bad after sale service

I bought my Nissan Magnite in May 2024. I reqeusted a reverse camera as an extra. I was billed R13 000. In December 2025 the radio touch screen started to freeze. I took it back to Nissan. Late in January 2026, (after alot of follow ups), they informed me that the radio is fixed. When I left there, I realised that the mic is not working as well as the buttons on the steering wheel. I went back once again. They said they need to consult with the technicians and will come back to me. It is 10 March 2026. No feedback and I still sit with a R13000 radio that is not working.