If you have lost your last OTP token you need to send an email to
admin at fedoraproject.org. Please sign this email using the GPG key associated with your account if possible, so that the administrator can verify your identity.
If you had multiple tokens and lost one, you can use another to login and delete the lost token from your account.
If you haven't enrolled a OTP token, you don't have one and this doesn't apply to you.