From their website:
http://www.diydating.com/commission.php
Note:
* Webmasters can apply to receive recurring commission payouts via our online feedback form once they have reached the 1000 profile mark (on the site in question). Once activated, recurring commission will remain active on that particular site.
** Commission is calculated on a monthly basis, any member joins and upgrades are calculated from the first day of the month to the last day of the calendar month in question. Any chargeback or refunded transactions will be deducted from the monthly initial commission total. In addition, deleted profiles do not count towards the new member joins per month in the calculation of rebilling commission.