Mivi — Refund Not Given Back

Hello! My Name is Aditya Singh from Kanpur, UP. I want to complaint against MIVI.IN.
3-4 weeks ago I ordered an earphone from online site of price 399/-, but later I cancelled the order without it being delivered. They told me through an email message. I called them but they didn't answer my call. Then I emailed them at first they told me that refund will be back to you in 10 days then after 12-13 days I emailed them back then they told me that they will refund me back in 1-2 days but they didn't. I tried to call them but they didn't reply. Then after 3-4 days of my last complaint I started emailing them a lot but they did not replied to my any email. I want my money back. Please sir help me.
Order Number-R[protected]