I have had the same experience and am not currently using my CPAP. The supplier for my Phillips Respironics Dreamstation was Aerocare. I have had difficulty with receiving assistance in adjusting to a tolerable mask, scheduling of routine overnight pulse oximetry readings, etc. After checking BBB I found they were rated “F” with countless complaints. After describing experience to my physician, she said they had many complaints reported by patients but they were reluctant to recommend another DME provider as many of those were unreliable as well. It seems we must either buy privately and negotiate insurance or Medicare rates and ask your physician to set up pressure settings as an alternative. Also, become familiar when new masks, tubing and filters should be changed out. Of note, I have not been instructed on how to set pressures. I assumed the pressure must be ordered by your physician based on your progress from their download of your results. Best of luck.