What is a cause prohibitive provider?

I recently had an appointment with my pulmonologist, followed by a CT, and a radiology report. The reports seem like everything was fine, but I asked my pulmonologist two brief questions to clarify the results. Her staff told me to make an appointment. Having just paid over $1,000 on above medical expenses, I said I didn't know when I could come back in and pay for another office visit. Her response is attached.

Does anyone know what a cause prohibitive provider is? At first I thought she was being charitable and giving me results, but on second thought now I think she's being dismissive and not going to tell me anything.