Not honouring deceased member's accounts

Please can Sizwe Hosmed settle my mom's outstanding hospital bills as a matter of urgency because the situation has become unbearable. My mom passed away in early October and there are still hospital accounts that haven't been paid despite my continued, relentless attempts to get them settled. I phone week after week, month after month only to be told that they've been escalated to a team leader but nothing ever happens, I'm just constantly told they've been escalated and get given new reference numbers. This has become agonising as it's extending the pain of losing my mom on a daily basis. It seems Sizwe Hosmed isn't honouring deceased people's accounts despite the fact that my mom diligently paid her medical aid year after year after year. Please can someone assist me in sorting this out so I can grieve without this huge stress and concern.