I woke up this morning to a couple of texts from Telecom to tell me that my mobile data usage was 80% and then 100%!
So I check my usage via the phone and it shows the picture below -

So I'm like wtf?!
8.9 MB, then 922kb then 922kb etc..
I haven't added a new app or anything for months (I do anything like that on my iPod Touch).
I haven't changed anything on my phone as far as I know.
What can be doing it?