Data Usage Bill Unacceptable

Goodday,<br> <br> I would like to query my interim bill for ***.<br> I put a soft lock in place to protect my data usage and lock my ipad once data has expired.<br> My line was soft locked when data ran out. But my bill which is normally R109 is now R2900.. meaning i was charged for data once my R100 limit was reached. <br> <br> This is unacceptable and has happened for 2 recurring months now. I cannot afford this amount debited from my account.<br> I would also like to cancel this contract immediately.<br> <br> Kishan Rama<br>