The unfair delay by Gems medical aid to pay the doctor

I had a surgery on 17th of November 2017 at a gynaecologist.I was given a statement of R1722.97 amount I was supposed to pay part and the other portion was supposed to be paid by Germs Medical Aid. Germs repudiated the claim firstly on the 12th March 2018 when i called and was advised of same because there was no practice number on the statement on which there was. i resubmitted the claim with the exact number and statement. The claim was again rejected and this time I was advised that there is no duration of the surgery on the statement of which there was .i advised that her claim will be reassessed and payment will be made month end . My account is about to be handed over by the gynaecologist's office.Germs was supposed to pay R7000 now because of their delay the amount has increased to R8000.00 Please I need help