Poor case management

This is the worst hospital to deal with especially with claims queries. I have called the case management of Ahmed Kathadra more 10 times just rings, last week i was transferred to client liaisons officer who promised to call me back. They have made incorrect claim submission now im receiving letters of demand from Erc inc.. i was in casualty on the 8/12/2024 and only admitted to the ward in the am's on 09/12/2025. The case manager created two pars one as urd and the other as a consultation as a result the claim was nit paid. This is frustrating and I don't think its fair that im chasing them for their error