Inappropriate deceit

Good day Dear Sirs/Madam Quite shocked after being charged R30 on credit balance on my account. Have purchased and item and tried to pay my balance of R8.85 and also to close my account. None of tellers were working which is quite strange you can purchase and not pay the balance. Is this your money making strategy of billing me another R30 on my balance debit balance of R8.85 if none of tellers can take cash and cannot close the account. Will not be liable! Regards

Concerned consumer