Contract Cancelation unexpected debit order

<p>I cancelled my vodacom contract in the month of May. The cosultant that I spoke to told me the contract is cancelled and there will be no more fees on my contract. At the end of May they debited my account for the whole month and said I received the free minutes. I did not use or received the free minutes as my cellphone number was changed to Cell C. I would like vodacom to give me back the months subscription as they told me that my cell number was cancelled and that my account would not be debited.</p>