Vodacom debited a canceled account

I sent a cancellation request via email for Vodacom to cancel my fibre account with them. I received an email saying that ticket has been created and I called them to confirm all is order. They said all is fine, cancellation will be actioned. This what submitted on the 14th May 2018.

I then receive and SMS showing that Vodacom has debited my account. I call them to find out what is going on and they say this should not have happened and they will escalate to the billing department and I will refunded the amount withing 48hours.

This has been more than a week and nothing.. I call them to find out what is going on and I get told that this hasnt been done and they will escalate it. They give me a number to call to speak to the billing department, which it was not.

Every number they give me the person says im not at the accounts department. Eventually they transfer me to the "billing" department and the call just drops.

I am starting to get frustrated & if not resolved within the next 24 hours will be forced to make this a legal matter.