Non payment of doctors account after the operation

The doctors were given authorisation to operate me by GEMS. I was operated on the 8th December 2017. GEMS was meant to pay the doctor's bills but still to this date, the 17th February 2018, they have not paid. When making enquiries with GEMS for this non payment I was told that they are unable to pay the Gynagologist because the assistant doctor used the codes that was supposed to be used by the main doctor that is why the are unable to pay the main doctor. I was told to tell the assistant doctors to submit a reverse claim so that the can process the claim for the main doctor. I did so and they submitted revese claim with the correct code. The anaesthetist doctor is also not paid they referred the case to PMB on the 04/01/2018 to date there is no feedback. After that I made several calls and even visited GEMS office in Acadia and they promise that they will be prosess but it never was. Now they have me running back and forth and making calls trying to solve the non payment issues. I am already being threathen by the accountants from the doctors rooms by telling me that my account is about to be taken to the lawyers and I will be blacklisted.