Disappointment as usual

Good Day

On the 8th of November 2021 I was at standard bank to open an account and only to find that my student achiever account is still open and i haven't used that account since 2*** , i only had a credit card with Standard Bank, the time i was at Standard Bank to close the Credit card i was advised to close my Student Achiever account as the charges were too much as i am no longer a student an had asked the consultant to close it as i wasn't going to bank with Standard Bank anymore. The account hasn't been closed and the charges have accumulated to R10 000.00 and i will not pay that amount as nobody has contacted me nor an smses to say that the account is owing how can Standard Bank leave an account seeing that it has been years not being active to accumulate so much? No phone call nothing somebody hasn't been doing their job right and i will not pay that amount.