Myntra.com — not refunded the money

I purchased some goods from myntra and i returned the goods which i don't like. They picked it up and initiate the refund to my debit card but till date no such amounts are refunded to my account. I talked with the myntra customer service about the matter. They asked me to contact bank customer service and bank customer service told to contact myntra. I already fed up with this.
Is there any steps so that i can get my refund back???