cardersforum.se review: I sent money, but company never exchanged it

I sent $300 to the website www.cardersforum.se. I wanted to exchange money, but after I sent this sum, I haven’t got anything from them. I waited more than 72 hours, but no info, no money. I started to send emails, but these scammers never replied. I have no idea what measures to take now and hot to get money back. Maybe someone has any idea how to track these ### and return money back, please contact me then or leave a comment. Thanks.