Not informed about increasing fees

I have a savings account with Standard bank where two of my debit orders go off. I transfer funds to my account for debit orders and management fees. In November 2018 Standard bank charged me an increased 'Monthly management handling fee' without giving me any sort of notification so that I am aware to transfer extra money into that account. Due to a larger amount being deducted for a management fee, my balances dropped and one of my debit orders bounced, causing a further "bouncing fee". I have lost money through Standard bank, merely sending me a notification about increasing fees would have helped a lot! So disappointed as I have been with this bank for about 17 years . I will be closing my account soon.