Radiologist submitted wrong docs to medical aid and got rejected now wants me to pay and still don't have correct documents

After call center calling me about the outstanding payment I requested the documents that were submitted to the medical aid and it turns out they rejected because if wrong docs submitted. I asked the radiologist to sendcthe correct documents and they sent the wrong docs which I informed them they were incorrect and their response was they do submit wrong docs and the medical aid normally pays which is unheard of. They do not have the correct documents instead pf acknowledging their mistake they refuse to and blames me for their behavior of submitting incorrect information to the medical aid. If your in a business of lying to the medical aid and hope they pay for it please consult with them and leave me alone unless you can give me the copy of correct documents