Cannot even cancel my ADSL account

During March 2015 my ADSL line stopped working, reported it twice just to get a SMS each time the next day that it has been fixed. Of course it never was fixed! Gave up and after some 30 years as a Telkom client visited their shop in Centurion Mall on 19 March requesting that my account be cancelled (I opted to rather go the LTE modem route with Vodacom, what a pleasure, good customer care, it works and cheaper!). Any way Telkom shop lady gave me a reference number on 19 March (A***5) as proof that my account has been cancelled. Surprise when today I received another account and found out that there is no instruction in their system to cancel my account. How useless can you be, first not able to fix the line twice in a row, then not even able to cancel my account?