GREEDY VODACOM

Yesterday I received an email from Vodacom informing me that my contract fee for Wi-Fi is going to increase by an exhorbitant amnout because they have made improvements to there Wi-Fi. AND NOW I HAVE TO PAY FOR IT. And I'm locked into a contract which means I can't just cancel with huge monetary repercussions. Why couldn't Vodacom take the hit? Maybe because of profits, yes that's it...greed