Bad Service, misleading

Have my 1sr car financed 6mnths with hyundai<br> Was not told I don't have a service plan but I have a motor warranty, when taking car in for service at 75km I had to then pay 1200,upon that I explained problems I'm having with my gears when driving a high speed, they want to charge me R6000 to sort out for something I only had for 6 months when I was told I am covered should I have problems with my clutch and breaks when taking finance.another R2500 for wiper blades,I am still not contacted as I explained my central locking is giving me problems alarm deactivates itself ian has not contacted me as yet, Bad service won't do any finace with hyundai, I feel me being a young customer and a lady i am being mislead by hyundai second time booking in having same problem with clutch and central locking