Myntra.com — Fraud online shopping site.

I ordered a product at the online shopping sale which they cancelled automatically saying the product is out of stock while it is available in the Myntra online shopping site. There supervisor talked to me and misbehaved while talking. He did not either resolve my problem moreover talked arrogantly. They fool people by organizing the sale and then don't deliver it. I want them to deliver the product at the same price or I want to take serious actions against the site for fooling people around as we invest our time in surfing so long and ordering the product but at the end it doesn't gets delivered.