Faber Heatkraft Industries Ltd — 3 burner cooktop one burner not working

This is a company with the worst service , they don't turn up for at least 3 days after complain.
One burner on my 3 burner stove is not working properly from day one ,the flame just goes off when something is still cooking, while the gas continues to come out .
Few days back it went off and the gas which was still coming out caught fire form the other burners.

I have returned the stove to the dealer i brought it from and waiting for response from the company , they did not even bother to give me call and I had to call them to which they responded once.

I need to get my money back and they should take such a life -threatening product back.

They should be booked under for being a threat to life