Dissatisfied Nissan Qashqai owner and Nissan customer

I am disappointed beyond words. We bought a 2011 Nissan Qashqai in 2023 April. End of June we took to Bruma Nissan for service by end of July it broke down. We took it to Nissan in Benoni for mechanical issues they failed to fix it even though they charged us and claimed from our mechanical insurance cover, we finally found a mechanic who can fix it and it turned out it was a valve issue. The car lasted about three months it started leaking oil we got our mechanic to fix it again since Nissan was hopeless to us. Again few months later this is now in 2024 it started leaking petrol and we have not been able to sort it out. With the latest news regarding petrol leaks I'm in shock they only called cars from 2021. I bought the car in 2023 still paying for finance however have not even driven the car for 12 months, I am paying for a car that is sitting in my garage coz of mechanical issues. Our mechanic tried changing one injector and it still continued to leak it's literally like you opened a tap on the fuel.