Please read again:
The rates of 5%, 10%, 15%, and 20% depend directly on the turn-over recorded for the last month. The initial rate is 5%. With the monthly turn-over reaching USD 2.00, the rate will be increased automatically by 10%, with USD 15.00 - by 15%, and with the turn-over reaching USD 100.00 and above - 20%. The more your referees will spend within the last 30 days, the higher will be your earnings.
It does not matter, from 1 to 30 or 15 to 15 of the month. The system calculates the last 30 days.
If you referals are purchasing every month, and you get at least 2$ profit from them, you get 10%.
If below 2$, your % will be automatically reduced, and so on and so on.