I am concerned with this usage, sgalano! We do not have any reported issues with this being known. Did you recently download the iOS7 update? Did you notice this happening after the update? When on WiFi, we recommend to turn off Cellular Data Go to settings > cellular > off. Additionally, when done with an application, it is best to close it down so that it is not running in the back. Double click menu > swipe application up on iOS7. You may view your data sessions by visiting vzw.com . Log on and select, data usage, view current usage. Manage data by dialing #DATA Send.
You can also avoid overage by changing the data plan and back-dating to the first day of the bill cycle.
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