Missing order

I had a Vodacom consultant contact me on Thursday (5th of November) to discuss my upgrade. We agreed that I would upgrade and the phone will be delivered to my address, details were given and all parties agreed on a white iPhone 11, 64GB. I was told delivery would take place within 3-4 days of ordering. To my surprise I received a call from another Vodacom agent on the 10th of November notifying me that I was due for an upgrade, I was shocked I had just given my details to receive my upgrade. The original order was never processed even though she confirmed my order with me and my mom. An agent at Vodacom has now informed me that the iPhone 11 is no longer in stock nor will it be restocked. The original consultant told me there were numerous iPhone 11’s available in multiple colors and multiple packages were available. I have been pushed from pillar to post trying to resolve this issue and Vodacom has been no help.