Unable to settle my budget account

On the 11th of Aug, I contacted Standard Bank via e-mail (from [Email Removed] to settle my budget account from my straight account on my credit card. On the 12th I received an e-mail saying it was done. It, however, still displayed on my next statement. I e-mailed them again (from [Email Removed] on the 31st of Aug and the 22th of October, but received no reply. I find this level of customer service unacceptable. I have been a loyal Standard Bank customer for 40 years, but their service has deteriorated over this period.