********** upgrade of my account

Upon phoning Vodacom's Customer Services to cancel my contract , I discovered that my contract was upgraded **********ly. I was ask to submit an affidavit and a certified copy of my ID, which I did. I was then informed that an investigator will be assigned to my chase and I will be contacted within 2 days. Its been weeks and my issue is still not been resolved. I'm waiting for call from the ***** department. I made several calls and sent several follow up E-mail. To add insult to injury Vodacom is **********ly deducting debit orders from my account. At no stage did I give consent to Vodacom or any other 3rd party to upgrade my contract and issue an IPhone 6, which I have not received.