CLOSED AN ACCOUNT TWICE, BUT NEDBANK KEEP IT OPEN

I closed my transactor savings account at Mall@Carnival, only to get an sms of funds low in account *****5338.<br> I called Nedbank, they said go to a branch, so I went to East Rand Mall branch where Juanita said the account is really closed this time.<br> Today I get an sms that funds are low on account ******5338.<br> What should I really do to close this account? Leave Nedbank?<br> This is going to a branch for mahala is tiring.