Breach of Contract

I took out an additional line July 2015 for the 150 u choose flexi ,the online order was approved nd the device delivered to date Vodacom has tried to debit my account with R246.00 which was not explained to me over the telephone and the reason that they are wanting to debit R246 no electronic statement has been sent to me to explain the charges even though it was confirmed by the sales agent that the online orders get free sim activation and free delivery of the device.<br> Now my question is if i took a R149pm contract why am i being debited with an additional R100 and the air time loaded on the device was less than stated on the site infact the airtime loaded was even less than R50 and then R18 debited for some BBM which was also said to me is included in the R149 monthly subscription<br> <br> You guys offer one product on your website but when product is activated it is different ,more expensive and all the terms and conditions are not the same <br> <br> I am not happy with your service ,you cannot offer one thing and give me less than what i brought and then expect me to pay more than the product offering <br> <br> I want to cancel this contrct with immediate effect and infact all my business <br> <br>