If you're footing the bill, you should know what you're paying for. Just like with any other major purchase. (I never paid for rehab, but I suspect it ain't cheap.)
Problem may be that your questions might have been better posed and answered prior to your daughter enrolling in the program. You're in a situation where the horse is already out of the barn....
I don't have kids myself, but I can only imagine how your heartstrings get pulled. Take care that maybe your daughter is aware of how to play you like a harp. The nature of this illness/disorder is that they are very self-absorbed and manipulative.... I know that you know that..... but just thought I'd send a gentle reminder.
Take care