Poor communication/bad service

i was admitted at Mulberton Hospital and when I was discharged I had unpaid bills. my husband made arrangement when we received the statement, we paid R300 26 October and the balance was R536 he told them he will come back to settle the account. the next thing account handed to debt collectors without any communication from Ampath. customer service is poor , even if I go back to the hospital I will tell the nurse or DRs to use Lancet . now I must pay more than wht I was owing them for what, why don't they communicate and the next thing you are told we cant help you , call the dept collectors.