Massive Vodacom 3G charges without notification

I have a cellphone contract and 3G contract with my Tablet. <br> I get 500mb data a month with the 3G contract. I requested that the contract should be capped when I reach the 500mb for the month when I took out the contract.<br> This sim was only used to operate my tablet, so I never used the full 500mb.<br> In July 2015 something unexplainable happend and there was more than 9GB of data usage over a weekend. This raised my Vodacom billt from a cellphone and internet account that usually totals around R700/month to R9000 for July!!!<br> <br> I DO NOT EVEN EARN THIS MUCH!!! I never even received a notification stating there is activity on the account pushing me over my allowed 500mb capp and running up a HUGE bill!!!<br> <br> I only received a message on the Monday, after the account was already at this amount and had to phone Vodacom to find out what was going on with no success.<br> <br> I cannot afford to pay this, because I DO NOT EARN THIS MUCH!!! Is this not what the Consumers Protection Act is all about. Not allowing someones accounts to go to the point that they are overindebt.<br> <br> This is not right!!! What is the use of them doing a credit check if they give you a bill of more than you earn!!!