when you signed up what does the T&C say about payments...should be able to find that some where.
Chances are the agreement you signed says they dont have to pay you until they get paid. There isnt much you can do here, i am sure Wotogopa is trying to collect but the continuity space has a lot of shady advertisers and if a network doesnt screen them good enough they can get stuck in this position if they dont have the cash flow to pay it and fight the advertiser. I would chalk it up to a learning experience and continue to try and get paid but dont be to hopeful about it
Both of those are pretty much on point. I work in credit when not working on AM, and most of the times you're pretty much bound to whatever terms you agreed to when you signed up. If this affiliate network had any idea what they were doing, they would have hired a decent lawyer to write the Terms & Conditions and would have included clauses for choice of venue (where you can sue), what the process is for handling disputes in payment (which will absolutely favor them), whether or not you have any right to collect attorney's fees on top of the money they owe you (doubt it), and more likely than not, they included a "Pay When Paid" clause, meaning you get nothing until they get paid.
However, you might have some sort of claim against the advertiser themselves depending on the contracts linking you all together. If the network has any integrity, you might be better off working with them and seeing if there's any chance of pursuing the advertiser on your own.
As an added side note, $9k is above the small claims limit for most states, so even if you were located in the U.S., that most likely wouldn't be an option.