Unreliable , inefficient, total *******

My wife obtained an authoriisation from Discovery for the purchase of a prosthesis ( in writing ) , it required that she purchase the item herself and submit the claim to Discovery who would than reimburse her within 2 working days , this was done, unfortunately the supplier did not indicate the ICD code on the invoice . Discovery paid an amount of R900 instead of the actual amount of R6000 without even contacting us etc .<br> After quering this with Discovery , a new invoice was submitted to Discovery which was confirmed that it was received , my problem is that up until today we have not been paid for the claim despite us sending the new invoice more than 3 weeks ago and calling daily .The excuses you get is that it is being referred to a manager and every time you call you speak to a completely new person whom you need to explain the entire story to and than is told that he's going to refer it to his manager and I'm given a reference number every time I call .<br> The last excuse I got was that all managers were on a workshop and there was no one there to authorised my claim , I'm starting to getting the impression that Discovery Medical Aid intends frustrating their members .