Vodacom cellphone upgrade - incorrect information provided

Ref 1- ********** 3431 Logged 8 Jan 2018 with Vodacom. Contract was due for upgrade. Did it in Dec 2017 in Makro Woodmead. Specifically asked the Vodacom sales person if my add ons will remain (ie paying R49/mnth for 1 GIG data). Was advised nothing will change even though I am changing my contract. Guess what... lost the add ons and Vodacom have told me that the Vodacom sales person at Makro should have advised me that I would lose this. I have sent Makro an email on 19 Jan after complaining on their website and not receiving any feedback. Received a call from a Woodmead employee stating he will liaise with Vodacom and revert. To date nothing from either Vodacom or Makro.