FNB - Useless and Poor service (Debit order *****)

FNB is promoting ********** activities. From 1st April I have emailed and twitted and called FNB to reverse a ********** debit order on my account and I have been send from post to post . ********** transaction on my account paid today 1st April 2019 for R175 reference Ss-Legal C ********** 001353, I do not operate or authorize any debit orders to my savings account. I use another bank for all my debit orders. Today 5th April 2019 no response I receive an sms from FNB telling me debit was done by BY Sure systems and to contact ********** 954. This company doesn't even exits and contact number doesn't exit too. The bank system say you can reverse debit order online but this particular transaction is even blocked from doing the online reversal. Why cant I do a reversal on this transaction? Is it an inside job ? Is FNB employing ********** that block reversals on the ********** transactions? I am totally dissapointed and have resolved to move all my bank accounts to another bank.