Online Upgrade

My son upgraded my husbands contract to the S20 Ultra black 128gig on the Smart M+ top up 400 mins and 900mbs data for R1169 towards the end August 2020. When the order was confirmed the devices included a galaxy tab which was on special at the time. Also an additional 1gig x 36 months was included and 20gigs once off. When we called to follow up on the order we were told by Vodacom that the order had been cancelled and at the time they could not tell us from who (red flag already). This special has now been rescinded and is no longer available online. This is ludicrous as the order was processed when the special was active so Vodacom is oblidged to continue with upgrade and uphold their commitment to customer satisfaction. I am extremely dissatisfied with the service from Vodacom. Today, 7 September, we received am email from Lennon (no surname stated) from Vodacom Online Admin after our complaint stating "KINDLY BE ADVISED THAT YOUR ORDER WAS CANCELLED DUE TO THE SYSTEM PICKING THE ORDER UP AS A ********** CONNECTION AND THAT THE SPECIAL IS NO LONGER AVAILABLE! No-one even had the decency to contact us and just cancelled the order without our knowledge whilst we were waiting for the order to arrive. This order was placed from our home PC. I would be extremely CAUTIOUS when ordering upgrades or doing anything through Vodacom ONLINE!!