Very Bad Service

I have never been so dissatisfied by Nissan South Africa , i bought a Nissan Magnite 2024 car in 2024 that is currently on 20 000km with only 2 services as it was recently serviced in December but the car suddenly broke down while driving and popped out a sign that it has an injector fault ,which later Nissan comes back after an inspection to tell me that the car it overheated which never happened , it was towed to the nearest Nissan and it has been there for a week and now we on the 2nd week , i have to call in everyday for feedback as no one comes back to me , i was not provided with any curtesy car nothing , i was told they logged a request and that i should wait for warranty approval since my car is still within warranty and now I'm told the car overheated and messed up the engine and that the car engine needs to be stripped and i have to now pay R10 000 to have the car stripped or they wont be able to fix it but send it back to the dealership were i bought the car ...I spoke to a lady by Cordelia in Nissan motor deal Johannesburg and the dealer principal , i have also been contacting the customer service and they logged a ticket for me under *** by the name of Kamogelo , i will not tolerate such ridiculous service when I'm paying for the car that I'm currently not driving and now i am told to pay a fee for stripping an engine that is suppose to be fixed by Nissan ....im not happy at all