Discovery worst customer service

I had to drive my vehicle in a huge hail storm 1st and 2nd gear for 12 to 14 km and a lot of traffic and poor fisabilty there whas no place to pull of the road and my vehicle clutch would not work any more.Discovery and the assessor said that it is a normal wear and tear and wear by i proved them wrong with reports from landrover jaguar za. Now they say they dont cover mechanical parts. But my release bearing failed due to heat how i had to drive my vehicle in the storm and poor fisabilty bumber to bumber. Discovery also ask my to get a qoute for the damage on my clutch system and just after they have received the qoute they declained my claim on the clutch system . It took Discovery and nett assess 17 months to send me an e mail to say the claim on the clutch is not covered . On the hail damage my vehicle was at the panelbeaters for 9 months and Discovery should update me every 48 to 72 hours what is the procress on my vehicle what they never did so yes this is realy very none customer services. I cannot understand they declain a claim where by they received reports from landrover jagaur za where they exsplain that my clutch problem on my vehicle whas broken due to the way i had to drive my vehicle.