Bad policy structure

I bought a car and finances it through absa. Because the vehicle has a lot of mileage on the odometer, i asked for a warranty policy that would cover any parts should it fail. I was ensured by the dealership and absa finance that the inovations group policy is the right one. My monthly installments on this police is R448.00. I have been paying this for about almost 12months now. This month of July my vehicles VVT module packed up amd my claim was refused. In the policy all the parts are stated that is covered, but in the exclusions it states that these parts will not be covered if damaged to wear and tear, nor if the part was damaged in an accident. The latter part is understandable, but the reason a person takes out a policy like this is to cover major costs should a vehicle break down after accumulating so much milage.i asked for a policy to ensure me that if i buy a vehicle with high milage that i would be covered by a type of motor plan, inovation group faild to deliver on this because of the exclusions statement in the policy, they advise incorrectly and refuse to call back.