Claims issues that dont get resolved

I have been struggling with Discovery since the 26th of January 2023 in regard to claims that were incorrectly made to my MSA. I have emailed and called them numerous times in the last weeks to get this issue fixed. At the beginning of this Discovery informed me that I would personally have to contact each of the service providers and have them reverse the claims on their side and re submit them with the correct details. After doing this I then contacted them to inform them that it was done to which they said I had to go back to each provider and get a statement showing the reversals. After speaking to yet another unhelpful call center agent I then sent through the needed documentation. I have still not heard back from them even though I email them at least once a week and try and call them. In the meantime, the claims that were made have depleted my MSA, discovery has not yet corrected the issue on their side, and I can't even go see a doctor as my MSA is depleted. It's funny that a mistake cannot be corrected in a timely matter, but they have already been able to process the claims on the correct medical aid which is my husbands. Do they make a habit of double paying their service providers? Or am I paying for a service that I can't use?