Your activation email might not appear in your inbox but rather in the Notification or the Spam folder depending on your email domain. Check these two folders for the confirmation email.
Maybe you did not receive your confirmation email because the company you work for blocks some types of emails. Contact us at firstname.lastname@example.org if this is your case.
Regardless of what your exact case is, you can send us an email to email@example.com from your email used in Genially account or send us a request at the upper bar of this website:
You will see a reminder to activate your account when you sign in until you do so. But no worries, your account will not be deleted if you do not activate it.