We Hassle, We Don't Pay Auto & General

About a month and a half ago on a sunday my tv in the bedroom just stopped working. I phoned my insurer who asked me to call during working hours. I phoned in the following week and the call centre agent said they would send out an assessor. It took nearly a month for the assessor to come. He opened the back of the tv and took photos as well as the outside of the tv. There was no visible damage of any sort. Imagine my surprise when I got the results, claim rejected because of corrosion/rust and loose components in the back of the tv. I disputed this and asked for a second assessor to assess the tv again. An assessor from Mastercare came in and did an assessment. When he opened the back of the tv I asked him specifically if he could see any corrosion/rust or any loose components in the back of the tv. He could see none. In his assessment to Auto & General he said it would appear to be a power unit failure because of a power surge. The claim was still rejected , they told me they were staying with the first assessment even that it was not based in fact.