I'd doubt that they're giving out their referral link 'coz I've visited/browsed the site & 'd like to conclude that this isn't a referral link but the link redirects you to the homepage & there're such other links like -> /?a=faq , /?a=news , etc. However, the site pretty looks like a scam(ponzi) & I'd entreat everyone to stay miles away from 'em.