UNITAS admittance and discharge procedures

Dislocated my shoulder, rushed to Unitas hospital, got taken in to emergency room, under anaesthetics the works as you would expect from a hospital. Got fixed and left only to find out that the procedure was never submitted under my hospital plan that I pay a fortune every month. I had to dish out thousands of rands because it was logged under day to day as I was not submitted to ward. I didn't know that, if I have known I would have asked them to send authorisation to my medical aid so that the necessary steps could have been taken. I had a previous injury before and at Lifecare they did just that, same procedure, in and out, everything covered under the hospital plan. Fact of the matter, just because they didn't push me 10 meters down to the ward before I got discharged I had to pay a fortune. No one advised me, it is absolutely pathetic. All the "creditors clerks" just said sorry you have to pay, no one even bothered to refer me to a case manager in this regard. I basically double dipped now, paying my medical aid every month and out of my own pocket. I don't accept the "yes but even though it is in hospital, the emergency unit functions as a day to day clinic". No one advised me.