Pathetic service from Mulbarton netcare hospital

I took my child’s dad into hospital, they demanded 85 k from me I paid it. We not related or married . He was there for 9 days . Not once did they call us or give us an update . They then send me a bill and threaten to black list me when I am not even responsible for the bill . The patient died . He begged for treatment and care to no avail . The hospital was full and no help or correct medicines provided . I want to sue them for damages . He had Covid and was 49 . I would like others you experienced similar issues to contact me on ***