How often does commission junction sends out payments? I have a cheque limit set to $400 and currently have $930 and for had that for over a month
They only pay you once they have received the money from the company that your promoting so you may have to wait 30-60 or sometimes even 90 days before getting your commission check, I wouldn't deal with them unless you have to.
CJ pays every month and you should get your cheque issued on 21 of every month, unless there is hold on your payment.