SARS - Bad Service

I submitted my 2019 assessment early in July 2019. After two months, an official phoned me and told me that my file was lying on the wrong desk, but that they will rectify it asap. SARS rejected my assessment, and I did a Notice of Objection. The Objection was declined, and I went to the SARS branch, and redid it. They told me it was correct, only to receive another rejection letter a month later. I went to SARS again, and redid it, was told it is right. And today, for the fourth time, my Objection was declined. If I read the SARS letter, I see that I have done everything correct. Nobody can tell me what I do wrong. You cannot phone them, because the Call Centre is not an Auditor. It is now four months later, and I am beyond frustrated.