MISREPRESENTATION OF DATA CONTRACT

I have been having endless problems with Vodacom with month on month over charging on my data and/or airtime accounts. These issues have been rectified for now. The case in point, l signed up on a new 36 months data contract in February 2023. The conditions were 36 Months @ R299pm for 250GB (150Gb anytime data and 100GB night owl data) as was advertised in their January 2023 catalogue. When l received my contract l noticed the quotation stated that the Promotional Gig 50 (which is added to the anytime data) is only valid for 24 months and not 36 months as advertised. No mention is made of this very important fact in their adverti*****t. I spoke a consultant on 21 February 2023.02.27 and she promised to confirm in writing that after 24 months Vodacom will add the extra 12 months to my data account as per my contract. She failed to send me confirmation, so I wrote to Vodacom CustomerCare twice requesting confirmation, but they just failed to further communicate with me on the subject. All I need is confirmation that the extra 12 months 50GB will be added after 24 months. Is that so complicated to address. On the other hand why don’t they just add the extra 12 months now as originally agreed upon in their adverti*****t. By not mentioning the 24 months “only” for “my promotional Gig50” in their adverti*****t Vodacom created the expectation that the 50 extra Gig would run for the duration of the contract. So isn’t that a misrepresentation of the facts?