Patients calling and having issues with the machine or mask were the most common. Also “I can’t afford it.” But they checked/rechecked a lot of patients to see if the CPAP had effected any change in oxygen saturation during the waking hours. I recall people having to fill out questionnaires several times a year. But they were also pulmonologists and saw people with severe lung and breathing problems who were also on CPAP.
But you can think whatever you want. Shall I give you their office number so you can contact them and accuse them of cheating their patients?
What you described fell into the first part of my reply:
“I suppose if you have some sort of issue.”
Clearly these folks have far more issue than simply suffering from Apnea.