BAD, DISGUSTING SERVICE FROM *********** STAFF - DISCOVERY

I have been a member of Discovery Health for 11 years (since March 2007) and now they are refusing to pay a claim worth ~R10k. When calling for the Pre-Authorisation Codes we were advised that everything will be covered. Only to find out a few days after the procedure(done 27 Feb 2018) that we are owing a balance of ~R10k to Waterfall Hospital which Discovery is refusing to pay. I have been struggling since early March 2018 making numerous calls to their Call Centre being pushed from one person to another requesting different requirements, then being pushed from pillar to post to Waterfall Hospital and the Surgeon who did the procedure. Discovery requested codes from Waterfall Hospital and the hospital is saying that it's not their problem they have submitted the relevant authorisation codes. Discovery then requested for a Motivational letter from the Surgeon(which was provided) to re-process the claim and they are still refusing to pay. Thereafter I was again told by Discovery that they require certain authorisation codes from the hospital. This has been going back and forth for more than 3months every-time there is a different requirement. The hospital and Surgeon are not aware of any different/other codes to the ones that have already been submitted that Discovery is claiming they need. Now Waterfall Hospital is demanding payment for the outstanding amount from me. I am a 65 year old pensioner and don't have the time or energy to deal with this back and forth and INCOMPETENCE. I have incurred costs from calling Discovery numerous times, as well as loss of income from taking time off work to go to Waterfall Hospital to liaise with Case Managers and Senior Managers resolve this issue. I am always following up and NOBODY FROM DISCOVERY has got back to me...I HAVE HAD ENOUGH OF DISCOVERY NOT BEING ABLE TO RESOLVE THIS ONGOING ISSUE.