Call limit not set after request

<p>I had called the call centre to request a call limit be set to my account</p> <p> </p> <p>i viewed my bill to see how many more minutes i have i then noticed a bill of R1000. </p> <p> </p> <p>I requested a limit of 400. However my limit was set at 4000. Now i have to pay for someone's mistake thats not on</p> <p> </p> <p>i want to cancel my contract with vodacom immediately due to me being in a financial predicament due to a consultant not doing their job correctly </p>