Myntra.com — my order isn't placed but money got deducted from account

Address: Behind Gupta Building ,, Yavatmal, Maharashtra, 445001

Placed an order on 24th dec on myntra of inr 1428, payment is done through paypal and amount deducted from my bank account but myntra claims that they did not receive even though my transaction details show the transaction was successful. But they are not accepting that amount is transferred and continuously asking me to contact my bank. What is going on. I want my money back.