Myntra.com — For not get refund

I ordered a tshirt from myntra .but i don't like it. So I do request for refund. I added my Paytm payment bank. They show that they refund in my account .but refund is not come in Paytm payment bank account. I complaint in their customer care but they told that we give reference number. Check details with your bank account. The process of refund is completely successful from our side. But i don't get any refund amount in my account.10 days ago I requested for refund .please resolve my issue