Unacceptable explanation regarding my high bill

<p>I just upgraded to a new contract which is smart XL. I have been receiving extremly high bills in the last 3 months and each time i query them i get the same response about my data usage and that i have been charged out of bundle rates. I dont understand how this is possible - seeing that i top up as soon as i receive a top up notification. I am being charged an excess of R1600 for data that is over and above my contract which i pay for, This does not included the +- 4gig top up that i still purchase.</p> <p> </p> <p>I need this to be investigated asap as i cannot just be working to pay an escalating vodacom bill each month. The call center is extremely uninformed and cannot even explain anything to me.</p> <p> </p> <p>Kindly revert back to me with an appropriate answer and solution.</p> <p>CELL NUMBER : ***</p>