Consumer Redressal

My laptop charegr has burnt when i plugged it in a switch borad,and they are telling that Dear Customer, We are so sorry to hear that you are facing issue with the adapter, as per our telephonic conversation you stated that adapter has been burnt while charging the laptop and we identified it happened due to voltage fluctuation, for which we can not replace the adapter as it does not comes under our Lenovo Warranty Policy. Why they are telling like this there is no power fluctuation the other 3 devices connected with the same switch board,why my charger got affected , if my laptop will burnt who will thake the responsibility. Their answer like Do what everyou want to do. we can not do any thing, if my body parts will get burned then who will answer for that. i want proper answer regarding this from company either they replace me a new charger or they gave me new chrger wiht 60-70% discount