Bad service

The worst medical aid ever. I am battling to get them to pay accounts. I have sent them numerous emails sometimes even as much as 20 to different email address (claims and queries). And absolutely NO response. I have phoned to query these ( I don't always have the time to sit on a phone call for 10 to 20 min to sort out these issues). I received ref numbers and seems like it does not help. As the accounts still haven't been paid, these are all hospital benefit accounts as he was hospitalised for a very long time.