Bank charges

On Saturday i went to withdraw money from a standard bank atm sleep was printed communication lost,i tried withdrawing again it said insufficient funds,i tried the atm next door it also said insufficient funds on the app it showed that i do have funds ,on every attempt I would lower the amount that i want to withdraw so it can cater for the bank charges still no luck ,i then tried it after two hours and still no luck when i went to the branch it was discovered that you charged me for all those failed transactions where else the fault is on your side