Fashion garments 74 - Online money fraud

Price of dress was ***.. he send the QR code through we paid *** and then he said amount is pending after that we paid again *** and this time also he said same thing that payment is pending so we send *** again... After sending three times *** he said to confirm your order you have to pay *** as GST... after sending too much money we tell him refund our money but he asked to refund all your you have to again pay GST of ****.... After all this we didn't send **** amount GST that he asked... We messaged and called him but he didn't responded