False adverti*****t! Special online deals, but they dont have any stock!

Yesterday, 27 June 2018, I placed an order online to upgrade one of my three Vodacom contracts. I received a email stating that someone will phone me back in 24 hours, nobody did. So I called them, then they informed me that they don't have stock and they can only send the phone to me once they have received stock. But when I initially placed the order, the system said that they have got stock. And the person I spoke to could not tell me when they will receive stock, she only said it can take between one week and 3 weeks. Why do you advertise stock on special if you don't have stock, and you also say delivery within 24hours?! That is false advertising! I have been a loyal Vodacom customer since 2005, but I think its time for me to move my business somewhere else.