Vodacom *******ly taking airtime

For a while, I have noticed that my airtime won't last as long as it should. I contacted Vodacom customer care who informed me that I was subscribed to 5 different services which were taking a total of R55 Airtime PER A DAY!!! Vodacom did cancel my subscription, but however cannot help me with refunding my Airtime which should be well over R3000. Could even be R6000, I want my my money back and I don't know which route to go. I DIDNOT subscribe to ANY services and I do see this as more of a ******** matter as this becomes theft