Could it be due to an affiliate's lack of sales , or maybe the program is too full at the time this happens? I've truly only made a few sales with Commission Junction, as sad as that sounds, and I've been a member of it for more than a year. I sometimes only skim through the user agreement because its so boring to read the whole thing. Could this be it?
Dont know why. But some merchants/advertisers only accept affiliates/publishers from particular countries, so they automatically reject affiliates from other countries.