********** Upgrade Done on My Contract

I called the customer care line to confirm cancellation of my contract which is set to expire middle March 2016 only to find out that there was an upgrade done on my contract without my consent and this was done at a store. It was definitely not me! I insisted that the line be cancelled immediately but the agent informed me that they would need several documents from me to confirm that it was *****. I sent all the relevant documents the very next day on the 26/02/16 and I called on the 01/03/16 to follow up to be told they have received my documents and that the investigation will only be resolved by end of March 16. I called again on the 03/03/16 to follow up, only to be notified that the call was closed because they are waiting for my documents. Such nonsense. In the interim my line is soft locked and the debit order is still being processed on my account for a service I am not receiving. I was then transfered to the cancellation dept and spoke to Tasi and he dropped the call on me. This is such an invasion on my finances and my security. I was told that It was a Vodacom agent based at a store that upgraded my contract and gave out a device but now it seems like this is my proble