UNAUTH DR BAL FEE SEE CHARGE STATEMENT DETAIL - R100.00

I have been a loyal client of ABSA since 2008, but since I switched to a cheque account a few months ago, my account has been debited monthly with UNAUTH DR BAL FEE SEE CHARGE STATEMENT DETAIL - R100.00. I do not have an overdraft facility on my account and when I went to ABSA I was told it was due to a returned debit order, which is also not true!

Please reverse those debit orders and return my money!