Account in arrears without a notification

I visited the hospital in June/July not sure of the exact dates. I was notified by ER consultants about my medical aid not making payments for their services. Received a call for blood tests payments declined by the medical aid representing lancet. I also received another call representing casualty from ER Consulting. I have thus far made payment for the 2. <br> I received an SMS on 02/12/2015 notifying me about another amount of that was rejected by my medical aid, 5months later. This is the 1st notification I receive from the company. I pick up my phone and call them to enquire as I was not aware of them. I arrange an arrangement that is crushed by the consultant and the manager. I am told that I should have known and my account will be sent to ITC as it is 5months outstanding. How can the same hospital use such different services for collection and such a bad process. I do not understand why I must be blamed for the incompetency of the process. I will never set foot in the hospital what so ever. I am not satisfied with this process.