Having trouble recruiting my friend

Hi, I'm trying to get the referral bonus for my friend making a new account but I'm not sure how to get it to work. Where I try using the sharit thing it just sends him an email, but that's it. What am I doing wrong?

Http://atwar-game.com/users/profile.php?user_id=342958

Send him one of the two links under the "invited users" tab.