PayUPaisa — Refund

Yesterday i was contacted by PayU support and they told they will be refunding my amount back to me as it is fraud website. They gave me a coupon code and told me to go to my bank portal and enter it there. When I added the coupon code, it says that I don't have sufficient balance in my account. When I checked with the PayU person who had called me, he told I had to maintain quarterly balance to receive the amount. Like, this is not some coupon or voucher i won, it is my money and they are putting these conditions. Now i came to consumer complaints to check but they've posted a comment that the merchant has received the money. Please help. That may not be a big amount to others but it is for me.