False advertising - deal not fulfilled

Extremely frustrated with Vodacom. They advertised a one day only deal on their website which included: router, xbox one, 80GB of data (which was 50GB anytime data and 30 night owl data). I proceeded to take the deal on the website and was then sent an email confirming the deal but it stated 60GB of data (30GB anytime and 30GB night owl). I then contacted Vodacom telephonically and was assured that it was 50GB anytime and that the addtional 20GB was bonus data thus not reflecting on the email. Contract is now active and I am only receiving 30GB anytime data. I have contact Vodacom telephonically numerously, I have sent them a screenshot of the deal whiich was on offer and asked them to pull the voice recordings of when I took the deal but.... NOTHING, no response from "SA's best network". This honestly feels like a joke, such a ******* to not get what you advertised for. This is false advertising and goes against the CPA.