Hopeful,
I'm sorry about your insurance problems. I know how you feel because, although my therapy is partially reimbursed, my son's is not and we pay for him out of pocket. Maybe you can get a part time job that is just enough to pay for therapy? I know how difficult this time is, particularly since it is occurring at the same time your T is having surgery.
Can you ask her to have someone call you after the surgery so that you know she is all right? I don't think that's an extraordinary request.
Good luck and wishing she recovers quickly for her sake and yours!