Vodacom upgrade

I am really upset and disappointed with vodacom. I have been a vodacom customer for about 30 years the1 contract for 15 odd years. I upgraded my phone and they sent a confirmation email. I did not receive my upgraded phones and phoned the upgrade department to find out when I can expect delivery. Their response was that the upgrade was cancelled and that the deal that I took is not available anymore and has been deleted. I expect them to honor my upgrade as they confirmed the order via email. They really have gone backwards in many respects the last 7 + years.