Fnb account closure

Good day I need hello Peter to assist me I have a complaint with FNB Daveyton mall branch I went to the bank to ask for account closure since February the 27 then they told me to go get required documents for the account to be closed I did as the asked and they told me the account will be closed within 31 working days I waited for the 31 days to pass then went back to the branch to check if the account was closed only to find out than account is not closed then they told me they was a system error I should waited for another 5 working days but still that 5 working days passed and the account is not yet closed when I went for the third time to the branch they told me they can't assist me then they out me through call center even on the call center side I have been waiting for the response nothing have happened