Unauthorized debits for services not rendered

I have been a Standard Bank client for over 12 years, however in the last year I have noticed in my statement last month I am being charged every month R69 for an overdraft service that I don't even have looking at my my stamens this has been going over the past year, for a serclvice I don't have, worst service from a bank I am really looking forward to closing this account and moving my business elsewhere.