DATA USAGE 100 MEG IN 5 MINUTES! IMPOSSIBLE!!

Good afternoon. <br> <br> I loaded the special 100meg for 1 day special. I literally had the data loaded for not even 15 minutes and it was finished. All applications on my phone are closed due to previous applications being downloaded without my knowledge and finishing all my data, but I know for sure everything is off and all I did was send one message on BBM and went down my facebook page (didn't even scroll down that far and then it finished). I usually get an sms to say once iv got 4 meg left, this time nothing. There is definitely something WRONG and I am honestly sick to DEATH of VODACOM and their expensive data rates. Cell C allow free whatsapp and facebook, MTN give data to their users, my boyfriend is with MTN and when he loads 500 meg he gets 500meg free EVERY SINGLE TIME. WHAT DOES VODACOM GIVE THEIR CUSTOMERS??? Instead Vodacom eat the data like CRAZY! when I call the call centre they are unable to assist because I am not the contract holder, even though im not adding any extra expenses to the contract, all im doing is querying a usage issue which I cant see why I couldn't be assisted! highly annoying. Iv always been loyal to Vodacom but lately I must say there is no point.