Surplus charges on account

For the last few months I have been in and out of numerous Absa branches regarding a unauthorized charge on my account. The feedback from the consultants range from "I don't know why the bank is charging you" to "It's because you have a chip card and the merchants don't bank every day" So I took the consultants advise to keep an extra few hundred rand in that account. Once again on the 01/01/2018 the same deduction was made although there was more than enough money in the account to pay 4 months' worth of bank charges. Clearly these consultants don't know what they are talking about. Seems the only way to get rid of these charges is to close this account and move my business elsewhere.