Telkom Mobile overcharging and terrible customer service

<p>My monhtly premium is R259. Today R835.71 was debited. I called into the call centre and spoke to an agent who cannot provide a clear answer. She then said she will transfer me to her team leader and there was no answer. 30min later I did not get any resolution to my query.</p> <p> </p> <p>I want clarification on the debit order and if there was an increase in premium please provide proof that I was notified. </p>