bad service

Hi

I app**** for a data/ sim contract with Vodacom which I cancelled after two days of receiving it the packaging clearly states that I could cancel within 7 days.. I have not used this sim from the day I received it. The price for the data is R200 a month and Vodacom has been debiting R342 every single month without fail on my account even after I phoned to cancel. I must have called about 5x to try and resolve this with absolutely no help! Today I was informed my account has been handled to lawyers.. The customer service at Vodacom is really disappointing