Multiple Plan Management
If you have purchased more than one plan, each of them will show up on the main screen. If more than one plan is available to use in your location, they will be used up in the order that you bought them. In other words, the first data plan you buy will be the active plan—it will appear above the queued plan(s) and consumed first.
Your active plan will be shown in the blue box at the top of the My Plans screen on your app. Should you run out of data on your active plan, it will disappear from the screen and the app will automatically switch to the next queued data plan.
If you only have one plan available for your current location, this local plan will be your active plan, regardless of when you bought it. The other plans will remain inactive until you arrive at those destinations.