Well- its underpartners in my book lol, or “sub-affiliate” as UNIBET calls them 
As I understand I get 10% of their earnings- meaning if I`m lucky this could be very lucrative if I get good ones who doesnt compete directly in my “sphere” but are active. I`m not sure but think I?ll make an effort on this and see how it goes….
EDIT:
Searched on the term “second tier webmaster” now and that is not what I mean- my englisg isnt that good I`m afraid but I hope you undertsand what I mean now.