Flipkart — No refund for used product

I got a defective product against which i asked for replacement or refund, but the replacement request has been declined by them and also the return request has been cancelled. Now the return period is also over and everytime they say we will resolve your issue within 24hrs or 72hrs but no resolution has been provided yet. Now i am planning to file a legal complaint for the mental harrasment and also the fraudlent services they have provided for the product that i ordered. I want my money back and compensation for my time. My order id is OD[protected]