Telkom billing me for cancelled service

Telkom did not cancel my contact after I gave 30 days notice in person in May 2015 at the Telkom branch in Jeffreysbay. I phoned the helpline again on the 20th August 2015 with the understanding that my services was cancelled for my number ***. They gave me a case no. ***6 and said the matter would be resolved in 72 hours. It still has not been resolved and after phoning again on 06/09/2015 no-one at the helpline (081 180) could rectify the problem. They are ********ly taking money that does not belong to them and their service is poor. I would not use them as a cellphone service provider, because they are quick to open up contracts and deduct debit orders, but are poor at processing cancelled contracts. It is very bad service and they do not deliver an honest service to their clients. I would not advise anyone to use their services.