Why stop my Debit Order

<p>I received a call from Vodacom's collections department to inform me that I need to pay cash for my account. I have always paid by debit order. I was also given a long-winded explanation, despite my request to the call centre agent to give me the gist only. The call cut off and I received an SMS to contact Vodacom myself.</p> <p>I had to make numerous calls afterward to find out what happened regarding the debit order.</p> <p>Why was it cancelled? Why was I not informed of it?</p> <p>Vodacom - this is really not acceptable.</p>