Airtime and data disappearing

Good day<br> <br> I have been going back and forth with MTN about data and airtime that keeps disappearing on my account. I have been unable to fully use this phone since January 2016. I even tried to enquire from Apple as I am using an apple iPhone but they referred me back to MTN. No one seems to be able to point out which Internet sites are eating on my data, which I find very strange because as the ones that have technical resources they should be able to assist their customers. <br> They say they can only see that it's Internet sites but they are unable to see which one, which then means as long as I still use this phone and number, the problem will continue. I need someone to put a stop to this as I cannot continue like this. I do not want them to deal with those Internet sites, all I need is someone to give me the names of the sites so that I can stop them/ deactivate them from my account.<br> <br> The number in question is ***, I will await your response.<br> <br> Kind regards<br> <br> Noxolo Kapela