Medical bill collections?

Is there any way to mess with a hospital and doctor that has sent my bills to collections? I have a hospital and doctor that can never seem to get my statement correct. I have no problem paying the bills but they always seem to send it with either the wrong childs name or amount on the bill. I have paid in the past with the wrong names and amounts and they get even more messed up and nobody can figure out what is going on. All I want from them is a statement with the correct name, amount and account number. I have talked over the phone with them in the past and they just dont seem to care. I know that I have to and will pay the bill but I just want to F**** with them a little bit before I pay it. Is there anything that I can legally do just to mess with them?