Vodacom - A bunch of *******!

So I have been sent a false upgrade date by Vodacom a few times this year stating that I could upgrade in March 2018, one specifically received on 26th September 2018 at 06:22 am. I also called in to find out if I could cancel or upgrade my contract as I was not using the data at all due to being in a WiFi zone almost all the time. This call was made in July/August 2018 I cannot remember the exact date. I called customer care on Friday, 19th October 2018 3 times 09:20, 09:21 and at 09:42 to take advantage of this so called upgrade to then be notified that I cannot in fact upgrade this year, only in March 2019.... I would love a reasonable explanation and compensation for the inconvenience caused due to VODACOM'S errors and incompetence! I now need the data because I am moving to a new place that will not have internet and I need to upgrade due to the fact that my existing contract doesn't provide enough and the method of use is not ideal. Vodacom, FIX THIS NOW!!!!!!!!! Has anyone else had this issue?