Unable To Upgrade

I have a Vodacom account with 6 lines. Of these 6 lines 3 or them are now due for upgrade and another will be later this month. The first 2 lines that became due for upgrade have been due since August 2015. <br> <br> During the past 4 months I have visited various Vodashops in an attempt to do the upgrade with no success simply due to the fact that I require a Microsoft handset and Vodacom continually claim to have no stock. To make a bad situation worse: I have also had various Vodashop employees, in almost as many words try to convince me that I am an idiot for wanting a Microsoft handset as these are \****". My choice of handset is entirely my own decision and should be respected.<br> <br> Now Vodacom's website is finally showing stock on the Microsoft Lumia 640 LTE. So I tried to upgrade online to this handset only to get an error. Then yesterday I called Vodacom's upgrade number on *** and spoke to a very friendly and helpful consultant who processed the upgrade. I was later called just to be informed that there is NO STOCK.<br> <br> MTN has stock"