Netcare Olivedale Hospital

Today I want to ask for advise and complain about non customers service or communication. Apparently we have an outstanding bill (even though we sent proof of payment months ago) but we just got handed over to lawyers who also doesn't communicate they just sent threatening messages and when you call them the one is more clueless than the other. No one knows what the account is for no one can provide a proper readable statement but the keep on sending threatening message 10x times a day! I have spend more money on calling them nevermind the patience of sending proof of payment over and over again.And when they attempt to call you back the numbers reflects as "7" of debt collectors harassment. Please assist!