The way you’ve used your services has changed this month. You’ve used additional data on top of the data included in your plan for your most recent billing period. This is a one-off charge and won’t appear on your following bill unless you exceed your plan’s data allowance again.
You can view your data usage at any time in the Services tab. You’ll be able to see how much data you have left for the month and how many days remain until your data usage is reset. You can see more detailed usage by scrolling down and clicking on Data Usage.
You can view the latest available plans for your service on the Service summary page.