Unsettled debt

I was reffered for Orthopaedical surgery which was authorized and approved by the medical aid and the patient was admitted at Nelspruit Medi-Clinic.You do not have control on whoever visits you on your sick bed and you will ultimately believe that everything will be paid for.(As it happened in the past).To my dismay I now receive calls from a Dr Barret about unsettled funds,which the medical aid claims were not authorised as the Dr is not on their DSP List of service providers and has therefore gone above the rates paid for by the medical aid.Now I am sitting with an unsettled debt of R3990.