Unacceptable customer service

I have just phoned into SARS wanting to confirm my tax number to speak to a very rude man threatening to put the phone down on me when I questioned him on 'failing' security check. He said I need to go into a SARS branch with documentation as I failed to establish which bank I bank with as apparrently I bank with more than one bank however I ONLY bank with Standard bank. I have never in my life dealt with someone so small minded and incompetant when asking to speak to management or his superior, they are in a meeting. Both of them? Seems a bit coincidencial. Then the remainder of the call he is silent! Really SARS is this the kind of employee you have running you call/help lines!! VERY DISAPPOINTED!!