Trying to upgrade with no help

I have been due for an upgrade for more than a month, 17 November 2017 I registered for my new device and was told Vodacom customer service would contact me, I received no response from Vodacom, then on 24 November 2017, I phoned Vodacom customer service and completed my upgrade, then again, I heard nothing from Vodacom to confirm my upgrade, on 29 November 2017 I phoned Vodacom Customer service to follow up on my upgrade status for I have recieved no device or information, then Vodacom customer service was informed that the Vodacom warehouse canceled my upgrade for no reason, Vodacom customer service could not provide any additional information regarding the cancelation, so on 29 November 2017 I phoned Vodacom customer service and requested an upgrade and I was told that a consultant would contact me that day, it is the 2nd of December 2017 and still have not recieved any call from vodacom to assist me with my upgrade.