Unauthorized Debit order

<p>I noticed a debit order from about 3 months back on my cheque account for SABI R99.99. I reversed it for the past 2 months and tried to stop it. When I dispute it or stop it, an error message comes up along the lines of "unable to process your request, contact your banker". I contacted FNB yesterday and I was informed this is for Absa Bereau Services which I knew nothing about. I was told another option I have is for FNB to stop it but I will be charged fot that. I declined as I am against paying for something I don't know to start with. My aim was to contact the number provided to investigate further, but I just read other complaints online stating this is actually a ****. Why can't FNB manage such ****s for its customers? This seems to be dating back a few years now. </p>