Ripping customers off

I am so fed up of the service received from vodacom! I paid my account at the store on the 28th. My debit order goes off on the 1st ! I called now to query my bill and am told that i was charged a penalty fee . I have spent 15 minutes on the phone with an agent called kholekha that could not explain what this was for and she is the agent. I was told to call again as she could not transfer me to ***. I asked to speak to a supervisor and am kept on hold for another 10 minutes and still waiting! This is absolutely ridiculous that vodacom thinks they can just charge you penalties for what???? The service from Vodacom off late has been so poor and they clearly dont care about retaining their loyal customes