Dont want to pay out a claim

My car was standing for a week on a farm what i had to stay while people was gone on vacation. I was about to sell my car and started it om a wednesday to wash it as it was being sold on friday all in Feb 2015. The evening of Thursday I started my car and saw the light was coming on on my renault clio. I phoned my motor insurance and the towed it in to renault. When the did n qoute they saw that rats invaded and eaten the wiring. They told me they did not cover it as they only cover mechanical parts. I then phone Apco where we are for over 20 year that is currently HOLLARD. I put in a claim and they send an assessor to see what the damage was and they claim it was not well look after. We had to go to the ombudsman and still waiting for them. Our ensurance was \ al om vattend". We still busy and hollard service is one of the worst i ever experience and we are client for over 20 years with them. It almost 7 months and had to get my car fixed as it was my only transport and cost me R 19 000 to got it fixed. They keeps getting back to say as per assessor \""that was not even an expert in the field and old policemen\"" the vehicle was not looked after. Hel we send photos of the engine dec15"""