Overcharging on data contract

Dear MTN<br> <br> I know this is a recurring problem with many many customers and have seen it on this website. i was overcharged by a considerable amount for the month of september, eventhough the pocket wifi was hardly used and when it was, the data usage was minimal.<br> <br> I am sure this is a error on the data management system or any other relevant department. I fully expect a reply with a plan of action to be sent asap.<br> <br> This is unacceptable and the fact that this is occurring for multiple customers clearly states that there is a problem.<br> <br> Email me back on the email address attached on hello peter.<br> <br> Regards<br>