Upgrade done without my permission

I called the call centre on the 21st of Jan to request for a cancellation of my MTN contract as it had already expired last year Novembet, where I was told by the agent that an upgrade was done to the year 2017.I never requested for an upgrade and am very upset that this was done without my permission. An outbound agent by the name of Nicolette Naidu sent me emails last yeat notifying me of the end of my contract, nowhere in the email is there any request for an upgrade and what sort of upgrade do you call this when I am still on the same package with no added benefits.<br> <br> This contract should be immediately cancelled and the person responsible for ********ly doing the upgrade should be dealt with accordingly.<br> <br> I have emailed mtn customer service and they told me that it is been escalated to the retentions department, but still I have not been contacted.<br> <br> I have been a customer of MTN for over 5 years now and after this whole episode I will rather move over to another network.