What do I do if I have a typo in my email address when creating an account?

This one is a bummer when it happens. 

Our security systems only allow a single instance of any given username or email address.  So, if you have a typo in your email address when you create an account, you'll have to create a new one with the correct email address.  However, since you already used that username that you really wanted for the first (incorrect email) account, you will have to choose a new username to go along with the proper email address.

Bummer, we know, but security is a bummer sometimes too.  At least you are the only one that will see your username.