Jockey — didn't refund even after receiving the return

I bought tow underwear from jockey india. They sent one wrong product. I made a complaint using their email addresses. Then next one guy from ecom courier came to my house and took the wrong underwear. I then contacted jockey regarding return. But, they are just send a copy paste message like return will take 10-20 days. Etc. It has been around 20 days and i am still waiting for the refund. I am sending email to jockey on daily basis.