Upnormal tarrifs

This morning I have been dealt with a blow, I'm a Telkom mobile smart 100 contract subscriber. Every month Im given 2 Gigs worth of data of which 1 Gig is all data bundle network and the other is I can only access it when I'm in at a Telkom mobile enabled area. From the 1 November 2015 till today I'm told that I have used up 1 Gig of all my all network data, an amount i don't normally used up in a month. I'm told that I'm using data even I'm asleep, I have changed they way I have been browsing the from previous month let alone fiddling with phones settings. But now I have depleted my data, this is not right, it's soo wrong. I'm been ripped by Telkom mobile, I actually want to even discontinue my subscription with immidiate.these has never happened to me when I was using vodacom. Well in my stay with Telkom which is 16 months to date this happens randomly, I would it's the third time happening whilst my phone settings is unchanged. Well every time it happens Im forced to top-up to stay in touch, I see this billing or tarrifs been a ripe of...Telkom mobile must stop it's nonsense of reaping innocent people.