Nykaa.com — bronson electric hair straightener comb

Received the product today and it is not switching on. Nykaa has completely washed off it's hands from any sort of responsibility. They don't even consider one day responsibility for the product. Bronson customer care is totally unresponsive.
I have just received the product, and there is not help from anywhere. Nykaa has directed me to several mobile contacts and emails but no response from anywhere. I don't even want to return the product, I am just looking for a replacement, a workable product.