Paid Collection Agency and Original Debtor - How to get part of my money back?

by Melissa
(Pekin, IL)

I recently paid off several bills that went to debt collections. Without paying attention I sent a check to the debt collector and the original company who turned me over to the debt collector. Both checks have been cashed.
I am entitled to one of those payments back?
If so, how do I go about getting one of the payments back?