Hi, I am new to bitcoin. i wanted to exchange bitcoins for paypal so i used a site called walletexpress.net. They scammed me out of $834.84 worth of bitcoins! They never paid the money to my paypal
. Now their chat feature is gone. I am so dumb for falling for this. It is the main ad in google search if you type in exhange bitcoins for paypal. When I log in it shows  my transaction. All of the blockchain info etc. I printed the info and saved it. If I click view, the info that they received my coins pops up. They have no customer service, and today they removed their chat thing.  Anything I can do to get my money? Thanks