Vodacom activate data bundles without your consent

So I figured out to "deactivate" my vodacom Data refill bundlefor R3 on *135#. Guess what!! u cannot cancel it..no option to cancel. Two other options to also deduct airtime. So with my previous review complaint a few days ago, a consultant called with tons of questions (when last i bought airtime, how much, yadayadayada). All i want is that vodacom STOP DEDUCTING R3 out of data bundles..I never authorised them to do that! My husband and daughters have the same problem and we all converting to MTN and I dont want consultants to call and interigate me with questions. When it comes to *****ing my airtime , no one phones you to ASK if they may. Im fed up with Vodacom and cannot wait to convery to another service provider.