not cancelling contracts and keep deducting

<p>I had an account with vodacom and when the contract stoped after 2 years I cancelled it. Now a Year later they are still deducting money from my account and this month almost R200 more. when i phone in they say there is no proof that i cancelled my contract someone did log on but did not put a name with the log in so they cant do anything. So they can ***** a persons money and get away with it.</p>