Jaano - Community Help

I was trying to sell my old furniture from OLX. I was in contact with 2 dealers and later I contacted with them on call for the further details. He gave me QR code to scan with refund money tag , I also did 2 test transaction before doing the actual transaction and it went well. But for the actual process when I scanned QR code for receiving money, not this time amount got deducted from my account. It happened on 8th march 2021. Now these people are not returning my money. Please take action against them, they did that with lots of users. Their details: Name: Krishna Kanahiya Number: 9339007118, 9678622861, 9678622861 Please take action.