Myntra.com — Not received the refund amount issued by myntra

I ordered the item of rupees 647 from Myntra using ICICI credit card and returned it and and myntra initiated refund also on October 3 but I didn't received that so I raised a dispute regarding that in icici bank and it took around 1 month to get details about it but now they are saying that your complain is closed because it is declined by merchant side and you need to contact merchant and again I contacted myntra for this they are saying we initiated the refund so I am stuck in between they are blaming one another so what to do I am not getting