This is why ya never pay a CA outside of a PFD, unless you have to. If you thought they were difficult to deal with when you owed 'em money, they can be less cooperative after you pay 'em.
So, is it reported by the CA, the OC, or both? And how is it reported? Is it showing a balance due?
Did either the CA or OC send you anything in writing that the account was PIF?