Data usage complaint

<p>I have upgraded on my vodacom contract in April 2016. My contract consist of 100mb of data, Sms, and 50mintutes. Which is also a top up contract. When my 100mb is used up, i buy myself 500mb over my internet banking. As for this month when I viewed my account on 'My Vodacom' I have been charged for 'data usage' an amount of R304.00. I imediatly contacted vodacom, according to them when i have ussed up my 100mb I have been switched to out of bundle rates. I have not been notified of this, and as far as i am concern I am on a top up contract and this should not have been allowed. According to the vodacom call centre there is nothing they can do about this, I have to contact them in the next month. I REFUSE TO PAY THESE MONEY. I AM NOW FED UP WITH VODACOM!!!!</p>