Order not fullfilled by Vodacom

Vodacom a multi million rand company could not fullfil my order. I am disappointed. My family Nd friends ordered smart watches from Vodacom website. Two days later I was refunded Nd the order was cancelled without my knowledge. When I phoned Vodacom to find out why the poor excuse was the item has been sold out. How can an item be sold out if it was still available on the website. Vodacom is going on like a Micky mouse company. We ain't fools. I have always bought phones from Vodacom. After being disappointed I would not support Vodacom.