Appalling service-claiming on PMB approved benefit

I have now called and emailed COUNTLESS times in an attempt to rectify a claim that should have been paid for a PMB-related doctor's visit on 28/9. <br> I app**** for, and received confirmation of, extension of my out of hospital chronic benefits yet the claim is still not being approved despite explaining the situation repeatedly and providing supporting documents and all other related facts over and over again. I have not used all of these visits and Discovery is not investigating properly to check the records that show this.<br> I emailed the Head of Service, from whom I have had no response. I also posted on this forum, from which I have received no response. <br> What, exactly, am I supposed to do in order for this issue to receive proper attention?!?!<br> This is a breach of contract according to the approved agreement to pay for these claims, and Discovery's legislated responsibilities to provide the PMB benefits approved. They state I have used all these visits where this is not the case. If there was proper investigation into this issue, and proper attention paid to the supporting documents, it should be a simple issue to resolve.<br> The reference number for all these queries is ***.