In this case, check one of the following:
- Check your spam/junk folder for the confirmation e-mail.
- Check whether or not you have indeed completed registration for the event in question. Go to the event in question, click on the Registration link on the left-side menu. If you have already registered you will see your registration data. If not registered and the registration period is open, you will see the Register now link (see screenshot below).

Note: The creation of an account in Indico does not mean you are registered for an event. Registering for an event requires the filling-in of a registration form. Events open for registration will have a Register now button which launches the registration form.
For more information, please refer to the Participant User Guide