Still waiting a response from Vodacom since December 2017

This was my original complaint on 6 Feb 2018: Good day I did not take out the upgrade contract with Vodacom for cell number ********** . Since December 2017 an amount of R918.00 is deducted off my account. when I queried it I found that the phone was delivered in JHB and I live in CT. I've been trying to get the contract cancelled with no luck. The assistance from Vodacom is none. I want the funds reversed that has been debited from my account and the contract cancelled immediately. But still no response on my emails to the ***** department or Hello Peter post. HOW CAN I GET THIS RESOLVED? URGENT!!!!!