Bad service in a private facility

I went to Netcare Akasia, for a private hospital that was the worst service ever. Before getting treatment I saw Physiothe******, he insist on doing the treatment straight away which I didn’t mind. After the treatment I asked for a report with a diagnosis, prognosis and treatment. And they started acting like am asking for them for a million dollar. I went for the treatment on the 6th the receptionist promised that I will get it tomorrow. On the 7th at 11 clock I called she said she will she will sent it soon. I called again at 12:55 she told me I will Get it in two hours. After 3 hours I called the lady got extremely rude started telling I am demanding. I asked her why am I getting the service of a public hospital, she tells me am not the only patient I will get the letter tomorrow. I am not the only patient Physiothe****** is seeing other patients. I asked her why did they agree to see me if they can’t help me with what I need and then she hanged up on me. I need this report as it need to be send to my company because I got injured while on duty. I am so disappointed one can get such a poor service at a private hospital