TOTALLY FAILING ITS PATIENTS !!!

I am so livid with Discovery, I could spit fire !!! I had to have bariatric surgery and there is a special team of professionals that have been approved by Discovery to do these operations. In order to do this operation, one has to do quite a lot of things before it takes place (not in today and out tomorrow). I had to pay hospital, doctors and other professionals upfront before surgery. We are talking R120K - not a small amount. Anyway I received authorization from Discovery and I'm fully aware that they only pay 80% back to the patient. SO WHAT IS THE PROBLEM - I CAN'T GET MY MONEY OUT OF THEM !!! THEY KEEP ON COMING UP WITH VARIOUS EXCUSES. I have spoken to so many people about this at the call center, its just not funny anymore. The people at the call center keep on submitting my requests, there must be hundreds of reference numbers by now. I CAN NOT UNDERSTAND THE MENTALITY. FOR GOODNESS SAKE, I AM AN EXECUTIVE MEMBER AND PAY MY DUES EVERY MONTH, WHICH IS QUITE HIGH BY THE WAY.