Promise of Profits after investing

I was scammed by this company claiming to be LUNO company. The Broker calls himself Mr Barry Seibert. I have invested more that R50000 SA money. They said I should pay Tax amount of R17000 after I have been approved till today I have not recieved a cent from them. I have recently blocked their so called broker on Whatsapp. I need your help and intervention to get my money I invested. I was sending money via Luno address ans my Luno account was blocked as well. Since I blocked the broker they have sent me another email to say I should communicate with them again. See attachment of the letters I have from the Company.