So a lot of people have asked this question and even some of our top players are unaware of this feature. If you had an account that was deleted due to inactivity or any other problem, you can recover that account by following these steps.
To recover your account, make sure you are logging in to the same server that your old account was on. Once logged in, continue to create a new account that is different from your deleted one. Chose your civ and create a name, it’s important that you use a different name than the account you wish to recover (If you use the same name, you will have to change the name on the recovered account). Once you exit the tutorial click on your Town Center and click the button labeled “Recover Role”. You can now choose which account you wish to recover and give that account the same or a new name. Welcome back!