Misleading sales

Bought a second hand car 4 months ago, broken indicator, brakes worn out. I was promised that they will pay for the replacement and bring me the brake pads, still waiting. My car doesn't have a jack, spare wheel or wheel spanner. Now they tell me that there is no proof that they said they will replace it or proof that the wheel and jack was not in the car. They say they cant helo me because the salesman doesn't work there anymore. Total BS