Want new machine after 11 years

[D.H.]

Also, in 2016 my Sleep Doc said that I should get a new machine, and they did not even question whether I had a working one.

You don't say who "they" is, whether you got a new machine, who paid for it, whether you use Medicare and what type of Medicare policy. Poor communication.

"They" are United Heath Care. I'm not on Medicare as I'm still a few years shy of that. They paid the amount stated on the policy (80%; the deductible had already been met). I'm also paying a monthly rental of under $4 out-of-pocket that should end in a few months.