Just increase contract subscription as they please

I refer to the SMS sent out informing customers that all data package subscriptions are to be increased. <br> <br> It beats me how Vodacom just decides in the middle of a contract to increase the monthly subscription. I am sure there is something in the small print that covers this underhanded move but to the man in the street this is a low blow. Keep it up Vodacom ...You and your competitors are all cut from the same cloth.