Terrible service at Netcare Ferncrest Hospital Rustenburg

My mother was having problems breathing & had severe back pain last week, she arranged for a neighbor to drive her to Netcare Ferncrest Hospital in Rustenburg. The emergency Admin clerk took her Discovery Card to review her details & kept her card while she was moved to a ward. After seeing a doctor, she was prescribed medication & told she could go back home which was a big mistake as she is currently in a very bad state & should have been admitted & kept at the hospital for 2 to 3 days of observation. Leaving the Hospital, she asked the admin guy to give her Discovery Card back to which he said I'm sorry but I have lost it. They took my mother's contact number & promised to call her once they find it. To date, they have not found the Card. In addition to this unnecessary stress, my mother has been informed that she is liable for the medical treatment at the hospital as this is not covered on her Discover Essential plan. They should have just admitted her as she was in no shape to go home & needs care. To summarise, they lost her card, let her go when she should have been admitted & now has to pay roughly R4000. This to me is poor service.