Mental health parity is not as clear cut as it sounds, sadly. I dealt with this last year when my insurance company would not cover 2 therapy visits a week, but would approve 1. Insurance companies are definitely still allowed to limit mental health coverage under lots of circumstances!
Rainbow, luckily it sounds like your T just needs to deal with calling BCBS on her end and that should solve the issue. I am sorry this is so stressful...I know I was a sobbing, tearful mess last year when my insurance was a wreck.
For anyone else interested,
www.nami.org is a good place to start to find more info...you can find a number for your local nami organization. The person at mine was very nice and helpful last year when I called re: mental health parity info.