Affinity- Lack of service

My daughter went in for a op, Feb. Affinity authorised and all when I received the hospital bill I was hit with a 22k amount, I refuse to pay my premium because I have to now sit with a bill they already said they would pay. It’s been months since the issue was resolved. No one can give me an answer as to why it isn’t paid. And transferred all over like I’m on a cheap flight. Cutting benefits and all, fair enough but how do we afford 22k bill and premium payments when you don’t do as promised? And I’m being harassed on a daily by call centre agents asking when I’ll do payment. Pay the hospital then I can pay my premium.