R90.00 dishonour fee

I have raised this issue on this forum before where the bank reversed these R90.00 dishonour fees however now its happened again. After my account has gone into overdraft, the bank debit my account wIth a R90.00 dIshonour fee. For a one man busIness that Is struggling to maintain Itself I just cannot accept that this is an acceptable practice of the bank. They claim that they are out there to assist small busIness (as advertised on Radio and TV) however what i have experienced is the total opposite, they go out of their way to destroy small business. So Nedbank the next time i hear each financial year-end the millions made in profits being boasted by yourselves ill understand that these profits were made in the wake of many small business enterprises who have been financially ruined by the big corporate organisation like yourselves. Seeing you do not offer any product / service where one does not get penalised for being a naughty boy Ill take out an overdraft facility whIch if this is the only way I'm going to resolve this then this needs to be done. I just cannot acceptable this practice by the bank each rand is important to me and my business if i am going to survive.