Only new referrals registered within the timeframe will be counted.
Only active referrals are counted. A referral is considered active if they view at least 20 PTC ads.
Only users with more than 100 Activity Points will be counted. Activity Points are the total amount of Tokens earned by referrals registered since the contest round started.
Not allowed: Fake accounts, multiple accounts, forcing people to sign up.
There are a total of 12 prizes for the first 12 positions.