Myntra.com — credit money

Address:

Kolkata, West Bengal, 7000091

I have received credit money of myntra and now am not interested to buy products from myntra for many reasons. So i want my money to be transferred in my bank account. Myntra customer care is denying to transfer the money to my bank account. What should i do?? Shall i take a legal step for this??

Really big mistake that i have chosen myntra for shopping.