No one is taking ownership to resolve my issue

I decided to upgrade my cellphone contract. This started with an online chat where i specified what phone i wanted iPhone 6s Plus 64Gb<br> This moved to a phone call where things where finalized and an order was placed<br> <br> Once everything was complete I received delivery of a iphone 6s not the plus on the 9thth of Nov<br> I contacted Vodacom agent that assisted me and was told this would take 14 Days to resolve the issue. This is due to them having to cancel the entire process and start from scratch <br> On the 12th of November they collected the incorrect phone. <br> <br> I found this terrible service as the issue was not my fault.<br> I have had numerous phones calls from the social media division and I mentioned Vodacom on one of my tweets. They have told me the issue was escalated to the retention's department. However I have yet to receive a call from them.<br> <br> I still have had no definitive outcome and what they are going to do to resolve the issue besides canceling the entire process and starting from scratch<br>