For those of you who don't know.
If you think your account has been "deleted" try signing in with capital Letter in your email address.
If that doesn't work just try capital letter with the password.
If that doesn't work and you didn't get banned or deleted, contact Kabam support.
If you didn't already get an email from them.
Some cases you may only need to capitalize the first letter of the first word. Depending what letters you capitalized upon creating the email. Now if you are one of those idiots who capitalize you email like this : TwAtSeX14@gmail.com you need to jump off a bridge