Stop *****ing my money, Vodacom, I'm not stupid.

I've been a loyal Vodacom customer for many years. This morning I noticed that a large amount has been deducted. I phoned and was told that "3"gig data" was added to my profile and that I had "to phone if I didn't want it". What ******* is this that something is added but I must cancel it if I don't want it? Customers' STRUGGLE with all accounts. If I wanted data, I would have asked and paid for data. Why must I now hold on for hours, be escalated to someone and check to see if I had received a credit. But I bet if I want to get out of the contract, there would be problems. VODACOM WAKE UP PLEASE. YOU ARE *****ING AND PILFERING MY MONEY AS IS THE NORM IN SOUTH AFRICA!!!!!! STOP CHARGING MONEY FOR SOMETHING THAT YOU SLIPPED UNDER THE DOOR WITHOUT MY SIGNATURE, THIS IS ***** AND AGAINST THE CREDIT ACT.