Terrible Account handling

Im utterly disappointed in how they handled my account. They captured my email incorrectly and did not receive any communication from them since I was in hospital. Now they handed over my account and only found out through ITC. I paid the account but I have been struggling to get a paid-up letter. Their collection company is taking me back and forth and Netcare says there is nothing they can do. I will not use this hospital in the future and I would never advise anyone