I owed $5.00 on doctor's bill that was delinquent for a few years. I did not have enough cash to pay it at the time and due to negligence on my part, let it go. Called their office to make an appt a year later, and they told me I could not see the doctor due to unpaid bill. Asked to pay it and they said it was too late. I have not been billed for it by a collection agency and wonder what I should do.