I just started to promote Intertops, and wrote asking about this also, and how it works.
This is what they told me:
The weekly statistics are updated each Tuesday for the previous week. The
commission is automatically credited to your intertops account every 4 weeks
(from date of registration). Then you can request a payout.
They said my 4 weeks or whatever was coming due this week and I should expect to see my earnings in my Intertops account available then to withdraw or whatever.