Vodacom committing ***** - Vodacom, you absolutely disgust me

I am BEYOND disgusted with Vodacom. After spending six weeks trying to cancel a contract on a colleague's phone (she passed away) and FINALLY getting written confirmation that the contract has been cancelled, Vodacom just went into my account and helped themself to a further R959.42. This is *****. Pure and simple. I am DISGUSTED that such a big and profitable company can behave like this. Actually maybe that's why they are so big and profitable. I am now thinking that the only way to avoid Vodacom from *****ing money from my company is by closing down my company's bank accounts. Otherwise it appears that they will never ever stop.