Vodacom ****s Money on so call Subscriptions!

I have just spent one and a half hours trying to get WASP subsciptions blocked on all my lines. I have done this on three previous occasions and on my phone. Vodacom has still gone ahead and deducted over R 500 rand from my stop order. When I asked the agent for the money to be refunded as they admit they have no proof that I ever subscribed to it and I have proof that their system states that I have NO subscriptions, I am told that my money will not be refunded. This is blatant theft and should not be tolerated in a civilised country. What suggestions do you have to remedy this blatant disregards for the law, when Vodacom claims that they have a "foolproof double verification system" before any subscriptions are loaded. PLEASE CHECK YOUR ACCOUNTS CAREFULLY FOR ********** ACTIVITY!!!