Last night, I had my iPhone plugged into my PC to charge. That same day, I upgraded to iOS 9.3.1 from the most recent current version. I went to check my data usage which I usually do before I go to bed. I noticed over a period of just over 15 minutes, my iPhone swallowed up over 144 MB of data. That is simply nuts. I checked all my settings including the iOS data counter on apps and how much they use and none of them were huge. I wonder if there is an issue/bug with Rogers and the iPhone?