Nedbank is putrid, making people pay for their ERROR. Unauthorized Debits

I received the worst service from Nedbank staff (spoke to Precious Mbanza) about a technical error on their part which caused me to be charged with"INSUFFICIENT FUNDS PENALTY FEE" IN ERROR !!! BECAUSE I HAD FUNDS IN MY ACCOUNT .... !!! ON THESE DATES: ( I WANT TO DISPUTE THESE CHARGES) !!!! I BELIEVE THAT I WAS CHARGED IN ERROR!! - 17/03/2020 BDS STANDA 1 ********** INS FUNDS -8.57