Myntra.com — Refund scam by myntra

Well This is becoming the refund scam of Myntra. I have ordered two dress for my mother. But unfortunately due to size issue It didn't get happened. When I return both dresses then one processed for refund and other kept on hold. The delivery boy came to home to handover that dress saying that tag scanning is the problem. When I called up customer care they saying that dress is used. What the hell is going in Myntra?? Such professional company is doing this. How can anybody say that you processed for 1 dress and other is kept on hold...I want my refund ASAP.