\Outstanding Debt"with no open account!"""

On the 27th of May 2015 I walked into the Nedbank branch in Canal Walk, Century City. I asked to close my account with Nedbank and had to pay an outstanding amount before the account would be closed. I did this ( I have the receipt) and the account was subsequently closed. Several weeks after this I am now getting threatening letters from Nedbank to settle my outstanding account. I don't have a ****ing account so what am I supposed to settle?! Can one of you imbicils call me back URGENTLY to settle this.<br> <br> Martin.