Myntra.com — Gift card not received and the money also not refunded

I purchased a myntra gift card worth Rs.1500 for my friend on November 7. Till date it is not reflected in my friend's account. I contacted myntra customer care and they told it will be refundable to my account, but it is not yet recieved. I waited for 10 days and still myntra customer care says to wait more. They haven't any surety that when the money will refund.
What should I do now?