Poor service, no accountability and plain incompetence!

I called Vodacom to cancel a contract on the 1st of August and confirmed that everything will be done by the end of the month and to date Vodacom has failed to do so and has now charged me extra for services I explicitly advised I no longer require. I contacted Vodacom again on the 1st of September and spoke to Shaima who promised to escalate the matter and have someone call me withing 24hrs and that has not happened. As a long time customer, I am extremely disappointed with the lack of service and incompetence for such a simple request!