Vodacom Shakeup Vodabucks and Vodabucks store are a ****

Vodacom Shake up bucks are a **** I used my vodabucks to buy a Kaizer Chiefs T-shirt. I received an sms from vodacom saying my order has been received by Digital Plant. I called Digital Planet today with my order number. They say my order was cancelled because they have no stock. So I should be refunded my vodabucks. No one has communicated anything to me. So all my airtime I used to accumulate the vodabucks all went to waste. And that Vodabucks store is basically saying you cant use your points for anything. Cant they convert the points into airtime. My 400vodabucks are just sitting there and I cant use them for anything because I am not going on a bus trip, airplane trip or holiday anytime soon so really what should the vodabucks be used for