CHANGE OF ADDRESS NOT DONE

I WENT INTO NEDBANK KARAGLEN TO CHANGE MY PHYSICAL ADDRESS. THE CONSULTANT ASSURED ME NEW DETAILS HAVE BEEN UPDATED. BUT FROM SEPTEMBER 2015, MY BANK STATEMENT IS STILL BEING SENT TO MY OLD ADDRESS. I DO NOT STAY THERE ANYMORE AND THERE IS A RISK OF SOMEONE OPENING IT. PLEASE CAN YOU UPDATE THE NEW DETAILS I PROVIDED IN AUGUST. IF YOU CANT JUST STOP SEND THE BANK STATEMENT. I WOULD RATHER NOT RECEIVE THE STATEMENT THAN FOR IT TO BE SENT TO THE WRONG ADDRESS