MTN - Huge Account and no feedback

After holding for 20 minutes my call was finally answered!<br> <br> I received a ridiculously high account for my tablet last month. I assumed that my child got hold of the tablet and thus just paid. I however again got a ridiculous account this month which is impossible as I locked the tablet away directly after getting the previous account. What is concerning is that the billing amounts are almost exactly the same. After getting through, the person wasn't very helpful and after a few questions that she didn't understand the call was ended from her side without a good bye. If there was a network issue I expect that she should have called back.<br> <br> Even though I wasted 20 minutes of my life I am no closer to understanding why I am sitting with a massive account.<br> <br> Surely MTN should employ more people if they receive these call volumes. Furthermore their staff should be able to assist one effectively and efficiently. I feel that this was not the case. This experience and their recent increase in pricing has made we wonder if they really deserve my hard earned money.