Example: suppose that you've invited two friends, each of whom generated $100 in trading fees by trading on Free2ex. Also, let's suppose that each of your two Level 1 referrals invited two friends of their own, who become your Level 2 referrals. Each of those, in turn, generated $100 in trading fees. Finally, each Level 2 referral invited 2 friends, and they also paid $100 in trading fees on the platform.
This means you have 14 affiliates: 2 on Level 1 ($200 in fees), 4 on level 2 ($400), and 8 on Level 3 ($800). Your rebates are calculated as follows:
You'll receive $220, even though you've personally invited only two friends!