Email Validation

Try a different email to validate as mentioned in this guide 

I'm unable to log on to characters above Level 20.

• Add [edit: email address removed] to your safe-senders list.
• If you're trying to send a validation email to the address that's already on your account, the system will not send it. You can temporarily use a different email address, validate it, and then change back to your original one.
• Log on to the Basic Information page using the same Display Name you use on the Launcher, check the existing email address, and use a different one. If you're using Gmail, you can use either googlemail.com or gmail.com as the same address, or you can add/remove dots: https://support.google.com/mail/answer/7436150?hl=en