Amazon India — ordered a room heater but received different product!

Hello this is my complaint against amazon india i ordered a room heater but received a cheap socks instead of room heater! And they are only giving me refund which i don't want because i bought that room heater in price drop now it's price has been increased and they are only giving me my money/refund! If they listed a product that time at that price then they should return and replace with that item instead sending me some cheap socks and refund! Please help!