JACK OF ALL TRAITS MASTER OF PATHETIC SERVICE!!!!

so I called in obtained an authorization for my medical procedure performed on the 16/8/21 where all codes submitted by my DR was approved to this point Fedhealth has now rejected my claim worth r10000 and feedback I get from their very unhelpful consultants is that the acc has been received but not linked WHOS PROBLEM IS THIS ???? i called in numerous occasions as I think I know what the problem is however on 1st attempt I spoke to Thato that made me like im disturbing her online shopping spree dropped the call gave it a day to calm down and called back today 2/9/21 on 1st contact I spoke to Kamo who asked me to hold next best thing I'm busy requesting a tax certificate because he clearly wasn't interested in assisting and transferred my call to a different department dropped the call because a tax certificate is not what i wanted when i called back i got through to someone named Jack he clearly takes his name very serious Jack of all traits master of none Jack blatantly refused to listen to what i think could be the error on the account and just went on telling me of their processes i then requested Jack have 1 of the team leaders call me back and Jack plain down refused this told me i cant speak to a team leader because his office based and the supervisors are working from home IM ASSUMING THAT BY NOW ALL COMPANIES HAS MASTERED THE TRICK OF WORKING FROM HOME HOW IS IT THAT FEDHEALTHS TEAMLEADERS CANT RETURN CALLS OR IS THIS AT JACK THE CEO'S COMMAND IM BEYOND FURIOUS AND WOULD LIKE A CALL BACK ASAP