Not informed probably

Good day. I bought a vehicle from value auto care in Richards bay in November 2013. When I phoned to follow up on my paper work. They told me there branch in pine town is now dealing with me because it's there vehicle. Ok so I phoned them keith and he help me him and a another person who no longer works there and all this is he's fold. It took me about 2 weeks to receive my vehicle. When we left for holiday on 21 December 2013 we could only travel about 350 km before this vehicle broke down and pine town cars gave me another vehicle. Then in June 2014 my management light on my car come on and I took it to Imperial Nissan Empangeni were they told me my timing chane needs to be done. So I used my motorite plan. But I could not because the information given by pine town cars was wrong. I bought the vehicle on 237594km on the clock and they said on my policy 220000 km so pine town cars said it was a slip of the finger. So now my gearbox is broken. And I want to use my policy again but can't because I haven't service my vehicle in 12 months as my policy said I must do. But nobody explained this to me and made sure I under stand this. So I need help please.