vodacom charging more than agreed on

<p>i upgraded in januarie, and ever since ive received bad service. i took out a data contract, the salesman told me i would receive 10g anytime and 10g night owl. i beleived it was like that,but then vodacom decided to charge more than the contract amount per month, 2 months in a row. i called in to have the problem sorted, and after many attempts it was sorted and the refunded me for 2 months, but i then found out, that my contract is only 10g anytime and not night owl as was promised, with that said, i left it like that. end july i got the invoice and again they are charging me more than the agreed total, i went to vodacom kollonade and the salesman didnt help e, he said he will log a complaint with vodacom and im still waiting to hear from them, im so tired of big companys ripping innocent clients off like this. i dont want this contract anymore and would like to cancel because i cant sort this out every single month.</p>