Dispute over customer report

I bought a Telefunken tv and i used the *****s that came with the TV as per the instructions and Mount it on the wall. the Tv has been playing for over 8 months since the date of purchase. when i moved out of the flat to a new place, i took it off the wall, and at a new place i put it on TV stand. the TV was playing for about two days, and when i was from work i switched it on but didn't play just showed a blue screen only. i took it to the store since it was still under warranty and i was also paying insurance. the customer report said im at fault because i used too long *****s to mount the TV on the wall and they damaged the screen hence its not playing. but i tried to dispute the report by saying the following;<br> <br> ---how can it be my fault, i used the *****s that came with the TV and as per the instruction of the Manual.<br> ---The TV was still playing while its on the wall, why didn't it stop playing same time the screen was damaged, i even have a picture where the TV was on the wall and playing.<br> ---why did the Manufacture approve the *****s for use, but not in good condition or size to use.<br> ---If i use the same *****s and manual as instructed, why were the *****s long<br>