Vodacom Summer shakeup

Vodacom summer shakeup really is a **** all you ever win is an ice cream or a few rands of jet or edgars where I dont buyt and the only data I ever win is either facebook , twitter or youtube and I dont use any of those platforms and every now and then the app gives an error when I shake and that makes it seem that they see when the good prices are won then they stop it by sending an error I dont think its fair I have been a customer for a long time and I try my luck everyday but to no avail.