Rude and dishonest

I have had a Cell C contract for a long time. My latest contract came to an end this June and I phoned to move to a pay as you go contract. This happened and I lost all of my services including caller ID as agreed. BUT they have continued charging me as if I were still on contract. Then when I phoned to have this addressed, the service agent was incredibly rude and unprofessional, talking to me like I’m a child. At one point, she interrupted me and said “hello, what did I say?”. Cell C is already in financial trouble. They cannot afford to be treating their loyal clients with such contempt.