My daughter was hospitalized for two days, and we ...

My daughter was hospitalized for two days, and we were told there was not room at LPCH so they sent us to their wing of El Camino hospital. We have no complaints about the actual care she received, but we later received bill after bill from the hospital even after paying a number of them. I called to clarify the total bill and was passed off to 3 different phone numbers. Eventually I was told they would look into what we already had paid and get back to us, but we never heard back. A month later we started getting calls and letters from debt collectors. The whole experience seemed very confusing and unprofessional. I work in hospital administration and can't imagine the confusion and anxiety that a non-healthcare person would feel through this experience.