Data bundles vanishing

<p>I have a 10 Gig mobile data bundle contract with Telkom since May 2016. A few months ago I noticed that on the 2nd day of the month that the data is finished without me downloading anything, that is 10 gig in 2 days. I raised the concern with Telkom and they told me that their system cannot tell but they speculated that someone might have hacked it. They advised me to change my password which I did. Subsequently the problem persisted months after that, in the morning of the 7th of May I had 7.5 gig balance and then in a space of 3 hours it was zero balance without me using the term internet at all. I contacted Telkom again and as usual they were not helpful , telling me that their system can't show them anything. After hearing an incident from one of my friends who also lost 20 gig in 1 day without having been on the internet on that day, I get the sense that Telkom is the one that is using our data. </p> <p>I am cancelling my contract with them as I can't continue to pay for something I don't get to use. Telkom is pathetic....</p>