Vodacom POOR New Contract service

I ordered a new phone 4 weeks ago with Vodacom the lady never told me that there was no stock of this phone and that I had to wait 3 weeks to get it. Only week two when I had to phone them was I told that there was no stock and that I had to wait to get my new phone. I then Cancelled the Phone and Took a Samsung phone which I thought was in stock only to get told a week after that its not in stock. I changed again to a Phone which they had in stock and have been waiting another 4 days for that Phone which they have in stock. I have to phone everyday only to find out this morning that "it was a system error" and they will phone me back which they never do. I told the guy from Vodacom that if I dont get my phone today I will cancel this New Contract with Vodacom and Get a Contract with MTN which I'm sure has stock and better service.