Usha International ltd. — Faulty Induction

Dear team, I want to inform you i have purchased the Induction cooktops of company name usha International Ltd. well on 02.01.13 but this product such a foolish because every five to six month it stop working and I usually complain to there toll free no & registered by 16.06.2015 complaint request - c [protected] ; reference no - 2659 but no response & then I again put second complained registered by 22.07.15 complaint no C [protected] & reference no is 5223. Provied the usha company. But till date after two complaint lodge no solution provied by the company and not a single call by any technical team. So please do it needful