Upgrade dissapointment.

I went to day to LakeSide mall to upgrade as I normally get very good service from them, so today I went in to upgrade. As my existing Samsung s7e is giving me problems for the last two weeks, I would of liked to send that in for repairs as soon as I've received my S9plus. So they sell me the pakage with the VR head set and Dex box. So I get told that the VR head sets are not in stock so they cant give the phone....? Then to top it off, I get told they will get delivery in the next few weeks but they are changing there deals on Tuesday and I might have to pay more or not get the current deal at all and I have to drive all the way there again to collect it. Have you seen the price of petrol lately? I feel this very unfair for me that has been with Vodacom for over a decade already. Why can I not get the phone so long and you deliver the rest of the stuff that is not in stock.