Frustrated client!!

I went to upgrade on Sat, 2 Dec 2017 at Cresta Vodacom. After going back & forth on which package & phone to take, we finally agreed and filled in all documentation. Then, of course, they only realised that they do not have the LG Stylus 3 in stock and advised that they will receive stock on Monday, 4 Dec and they will give me a call to collect on Monday afternoon. After hearing nothing, I phoned them on Tues, 5 Dec to confirm whether they have received stock for me to collect my phone. I was then advised they can't tell me when they will be getting stock as it is on back order. I checked my online account and I have already been charged for the new package & cellphone (from Dec) and the data & minutes have been loaded to my sim, while I have no idea when I will receive this phone. I then phoned a closer Vodacom (Kolonade) to confirm whether they have stock and to check what is going on on my profile - again, they will be getting stock "today", took my number and will give my a call "this afternoon" to confirm stock and what's going on with my account. Guess what? No call - not from Kolonade or Cresta. It is now Wednesday afternoon, 6 Dec and I am getting frustrated & angry. I need to know whether this "stock" will actually ever arrive or whether I need to pick another phone - and why I have been charged for all of this without a phone.