Prof. Manga; Specialist physician-Cardiologist - this **** will use you

Around February 2022 my wife and I requested the services of Professor. Pravin Manga, Specialist physician-Cardiologist. I explained that we will be using Medical Aid and we are on a network plan. Prof. Manga said that would not be a problem. He explained that he required a cash payment for the first consultation. He did not accept payment into his bank account; is this tax evasion? My wife paid the amount and Manga did what was supposedly patient examination tests. When it was time to do surgery Manga failed to get approval with our medical aid company as he was not part of the network. We had to pay a further amount to another doctor for first consultation. I requested the results of the tests that Manga had done so as to use the, and reduce our costs. Manga failed tp provide the results. Manga knew from the onset that he would not be able to provide the service. He refused to refund my money. We got nothing from him after R5000 payment. He ****. He used us to fill his pocket. It seems he is also evading tax.