Upgrade Challenges

I did 2 upgrades on my contracts that I have with Vodacom 1 on Sunday the other on Monday, Today I received the one I did on Sunday when I called in to find out about the other upgrade your agents can not find it on the system however on my Vodacom profile it shows both orders, when the agents try to upgrade on their side the Samsung A24 is R 339 however on the app it shows as R 249 hence I can't do the upgrade in the call center because the R 249 deal is an online exclusive, I am now fastrated as the device was for my little sister whom I promised a phone to after passing her driver's license and was hoping that I'd get the devices delivered at the same time, now I have to go home with my new device and tell her that I am still try to get her the phone imagine the disappointment to her. Can Vodacom please process my order as I really don't know what to do right now. I have also seeked assist via Facebook messenger, last got an update yesterday and after that I have asked for an update and no one is responding