Question Details:I sent a check for a bill to a hospital with the wrong PO box number on. Then a few weeks later I got a message from the hospital stating they didn't receive the funds for the bill. So I sent a second check whichzero'ed our balance with them. The first check has remained with the hospital since a few months after sending it, where it has remained in limbo while the PO box issue was worked out. I have a record that they have the funds from the first check.
Unfortunately for you there is no real legal action that you can do to get the hospital that you owe money to, or at least owed money to to cash the check that it has been holding to "zero" your account with it.
The best that you can do is write the hospital a letter referencing the checks paid and that once they have been negotiated your account has no balance owed on it. Keep a copy of the letter for future reference and need.