Unilateral Price Increases!

I just got the email from Vodacom saying that their pricing is going up in May... just like that? I signed a 24 month contract with them for specific service at a specific price... they are so inflexible they would not let me port a number in on that contract once it had started... where the rest of SA are dropping their data pricing ... Vodacom are upping theirs !! absolute ******* from a ****my company that appears to know very little about Customer service and even less about contract law and the CPA!<br> Voila ...thanks you very much .... and here's a 10.1% increase on my data contract a mere 5 months after we started it ... 5 months later!! and a 10.1% increase??? ***** you Vodacom! Take your increases and shove it! You will be losing all my services soon! Already moved two of my contracts to Telkom Mobile... at least there they can honour a contract!