Myntra.com — refund fraud

As every year i had done lots of shopping worth rupees 40k in this year-end sale.. Out of which i had to return 5 items witohout any choices left and gave the bank details for the refund... Since a week i'm waiting for the refund and when i call the customer care provider the bank details whic i've given s incorrect so i reshared the new bank details one more time but the same reason they are giving me again...