Multichoice unauthorized billing

I complained here about a billing issue more than a month ago. The next day a customer service representative from Multichoice phoned me back and promised to address the issue and come back to me the next day to confirm that it was resolved. It is now more than a month later and I am still being billed R 70 per month for a "2 point installation" that I never signed up for. A large company like Multichoice surely does not need to de***** money from unsuspecting customers.