POOR COMMUNICATION, SHORT PAYMENT LEAVING HUGE BILL

Son was admitted to hospital after authorization and and and, after 3 days in hospital he was diagnosed with meningitis, for this virus he unfortunately had to stay in hospital for 10 days treatment. worried about all the fine print I gave Affinity health a call to confirm that all is still good and I won't receive a massive bill after the 10 days and the lady assured me that there is no problems my case manager has every thing under control. 3 weeks after my son was out of hospital I still haven't heard anything from the medical aid, only when I called in for information I was told that the full amount on the hospital bill wasn't covered leaving me with a huge hospital bill which I am so called liable for. I need to know why I have this medical insurance which includes Dr's visits plus hospital plan if they do not cover for the full hospital bill. I want to cancel this policy with immediate effect as it is not what they claim to be when rubbing the policy on to you. I want Affinity health to look at this bill again and settle the outstanding amount. If I received ANY but ANY communication form them telling me that they will not pay the full amount it was a totally different situation.