To resend a registration confirmation email you'll need to log into your CCN organiser account here https://ccnbikes.com/accounts/login. Once logged in, click on "Tools" and choose "Dashboard".
Click the "Registrations" tab under "Search and Manage".
You may enter search criteria to find a specific registration (by F Name, L Name, or email) or you can leave the search field blank to pull up all registrations.
Select the registration to enter the details page, within the registration details page, in the right-hand pane at the bottom, there is an option to Resend Confirmation E-Mail.