Life-threatening neglect at Midstream Mediclinic

I went in to Midsteam Mediclinic to have major spinal surgery in October. It was very difficult to find a nurse when I was in ICU. I couldn’t find my call button on multiple occasions and couldn’t turn over or even move to try to find it, so resorted to calling out for someone to assist me - sometimes for several minutes. This went on for 5 days! On one occasion my visitor - who was with me for more than 2 hours went to locate a nurse (I was supposed to be turned every hour) only to find them all in the nurses station! The patients were being ignored. The worst part is because of their neglect I became over hydrated to such an extent that I had a cardiac arrest! A sister then came and shoved a mask on me and when I tried to say that I was claustrophobic I was shouted at and was threatened to be restrained. I put in a complaint - at the suggestion of my surgeon - with the hospital and with the matron of the ICU. I was told that the sister in question would be reported to the agency. The agency!! This is one of the most expensive Medi clinics in the country and they get their nursing staff from an agency? They know nothing about your medical history and obviously don’t check the charts or they wouldn’t have over hydrated me or neglected turning me or even checked on me! When I asked about the neglect by the staff I was told that she would look into it. I have heard nothing back, even though I emphasised the fact that I could have died of the cardiac arrest. The nurses in the ward were very unfriendly and extremely rough with my brace when turning me over. When again I couldn’t find my call button I had a panic attack I was so traumatised after my treatment in ICU.