Vodacom airtime and data disappearing from my phone without my usage.

i have been having a problem with vodacom eating my hard earned airtime, minutes and data. i contacted them several times to resolve the issue of which they just give you a number to deactivate the WASP services but vodacom still continues to eat my airtime and data and there doesn't seems to be any resolution for me. its really irritating and inconveniencing i have already started the process of acquiring data services from other networks as im fedup with vodacom eating my money. their query customer service is really ****. yerrr mxm