Myntra.com — robbery by not returning money

On ordering shoes, Myntra provided me fake adidas shoes. I made a return request and the guy who came to pickup the shoe took the shoes but never updated me with a confirmation message saying that the item has been picked. When I checked myntra it said request has been declined. They stole 2700 rupees from me and the shoe was also taken by the delivery guy. Since then I have called them many times but they just keep saying they’re investigating and now its almost 20 days they haven’t returned the money nor have they taken any action. I demand strict action and investigation. This website is fraud. They are stealing our money.