Far as the notblox situation goes, for the most part a manager has the final say. If you don't like his say, take it up with them through pm. If they outright scammed you it's different, but this is not an outright scam. Just don't join anymore of that managers bounties if you don't like the way they manage. My 2 cents anyways.
This I think should have done by him. If he doesnt get reward for that campaign means his not eligible for the task he done and from there he should have accepted it if ever theres a complain surely you dont wanna publicly rant it out and make things personal all the way.
Well based on the thread on altcointalks it seems theres more to it than just the reward.