Complaint Review: Santa Lucia Security Company S.A

I received a letter from Loteria Primitiva from Elgordo last week saying that I won the amount of $615810. I read some of your report and saw the same thing happened to me.
I really regret that I didnt go online to check out this company. By the time i did, it was too late. I was dumb enough to send them a big amount of money.
I really dont know what to do. So I'm asking if any of you, who already experienced through this, could show me what do I suppose to do next or is there any ways that I can get my money back.
Please feel free to email me. I really appreciate your helps!

Oanh
Nashville, Tennessee
U.S.A.