It's not bye-bye after you buy. See what you've got left. Stay on top of extra charges. Manage your bills or packs. Get add-ons. For all your EE mobile devices. All in one place. My EE s an app for EE customers on pay monthly, pay as you go and 4GEE WiFi plans. On pay monthly? Check your data. Manage and pay bills. Check any extra charges. See itemised calls and texts.