Myntra.com — refund

Website: Myntra

Its been 20 days but i haven't received my refund yet. They are giving me reference number for the same. After complaining to the bank so many times, i am getting the same reply again and again i. E. They are not able to trace any transaction with the given reference number. I am fed up calling myntra again and again. They don't bother to accept that it could be their fault.