Zivame — Not giving my money back

Address:

SECTOR 5, HOUSE NO. 382, VIKAS NAGAR

I returned an order from zivame and after few days they gave me zcoins in the app. I then asked for to convert my 1020 zcoins into money and transfer it to my source account. They removed my zcoins, so I thought they would transfer my money to the bank account. But it dodn' happened. I have written a lot of number of times now. Either they tell the payment eas mot completed or your money will be given 3 to 4 days. Its been a lot of days and I haven't received my money.