You can purchase more than one Prepay Plan, however, the new plan will override your current Prepay Plan and you will lose all unused entitlements in your current plan. Switching to another Prepay Plan cannot be reversed and any remaining entitlements in your previous plan cannot be refunded.
If you have run out of your allotment of data, you can purchase a Data Pack Add-On at any time. To learn more about our Add-Ons click here.