Appalling service to lotal clients!!!

I have been unable to resolve a despute on a claim since August 2024 which Discovery should be liable for as we pay quite an exorbitant amount for the medical scheme every month. My husband has our medical aid with discovery since 2003 and we have barely made use of it. I was admitted for a Proceedure around June/July 2024 and waterfall hospital as well as Discovery confirmed all billing will be covered by the medical aid. I received a bill of R10 000.00 which we were hounded to pay or else our details will be blacklisted. I was requested to provide a letter from my doctor to motivate for the Proceedure which was done even though Discovery and the hospital admin confirmed prior to the proceesure that the codes for the Proceedure as well as the hospital stay was fully covered by the medical aid. I am entitled to a refund of R10 000.00.