Hollard **** alert

I have insurance for car and home contents with Hollard insurance. I sent a claim for my television set which when i switch it on it only plays the welcome screen and switch off automatically without playing. An assessor was appointed by Hollard he came to my house took pictures and asked me questions of what had happened checked the plug , invetor and main switch then left. Was sent a regret letter wereby were the report says no faults found and that its mechanical breakdown and not related to any insured peril which i dont know and dont understand what that is i just feel now its their time to deliver they give me these confusing words which i never knew when they where deducting my monies was never told about these issues