Flipkart — Deny to Provide Refund

I order two suit but unfortunately because of size issue I return the product within two day. Now after raising complaint they told me to wait and after a week they mentioned that we will not be able refund your amount because you didn't return the product.
Poor customer care service. They simply put all blames on customer. It's been two months now still they are doing nothing. Even their customer care agent also don't know how to communicate with the customer. Fraud company