Release the Kraken!!!
You know how many clicks you sent, you know how much money you were paid per click. You know the cost of each campaign. Do the math. It really is that simple.
If someone shaves 2/3rds of your sales and still manages to pay you 43 cents per click overall anyway, while someone who is completely honest shaves nothing and pays you 6 cents a click... send your traffic to the one paying you 43 cents.