Discovery at it again - No service

In February my wife had a medical complication and i rushed her to our GP, he advised that she be rushed to hospital as her condition was serious. I rushed her to hospital, she was admitted and stayed in hospital for 3 days .The hospital bill was declined as the Dr from the hospital never submitted a PMA form,i followed up and the Dr submitted the form a month ago.Today i am sitting with unsettled medical bills from the hospital, i have been contacting Discovery almost everyday to get feedback and i am always told the same story that someone would call me back and that never happens. When i ask to speak to the person that is supposed to assist me i am told they will call me back. I am now threatened with FINAL DEMAND letters and that my name will be handed over to the credit bureau. Why am i paying Discovery so much money if they cannot provide a service to me ? <br>