Myntra.com — refund to my bank account

I cancelled my pre-order on myntra online shopping app. As per their return policy for debit/credit card payment, i should have gotten my refund by now as it's been 10 days. I contacted them and their response is to dispute 'refund not processed' to my bank. Please kindly make my refund of rs.1040 as soon as possible.
Order reference no. �"30001092489243209278802"� �1040.55