Mondeo preying on unsuspecting Vodacom customers

I was contacted by a consultant from the Mondeo call centre acting like he was doing me favour by charging me less for more airtime in December 2018. He did not mention that this was a 24 month migration contract - I only found this out recently when a Vodacom consultant tried to do the same. Despite calling within the 2 week period to cancel this arrangement and to return the 2 unopened Microsoft packages that I had been given, no one has since contacted me. I only found this out when I went to a Vodacom store to upgrade my phone that I was told that I had been tied into another 24 month contract! I contacted Terushka Pillay at Mondeo who was meant to investigate 2 instances - the validity of the consultant selling me a 24 month contract and why no one contacted me regarding the pick up of the Microsoft packages and the subsequent cancellation of this "arrangement", however, another consultant contacted me with a half baked explanation which I refuse to accept. Vodacom is using Mondeo to prey on unsuspecting customers.