Vodacom so tired of the lying and scheming

Vodacom and they shady dealings. My son played that stupid stupid MegaShake and won 10GB for 7 days. Well low and behold I receive my statement and there it is a charge for 10GB for 7 days. I am soooooo tired of this company all they do is lie and ***** and act as if your crazy and totally ignore customers when they have queries about the charges to their invoices. No feedback no nothing and what happens if you don't pay? They block your account so they have all the power even if they are the ones in the wrong bunch of *******, if anyone is looking for a mobile contract don't take one with Vodacom please please please I am kid you not you'll be better of without trust me this is just one more complaint in a long line of complaints that I've had with them and none not one was resolved to my satisfaction