After successfully registering your email address, you are shown on screen a Success! message. We also send a confirmation of opt-in success to the email address you registered with.
We are aware that sometimes these notifications take a long time to get to your inbox. We are working with your ISP to streamline this process.
If you still don't have confirmation after two hours please contact us at email@example.com and our support team will be able to confirm the registration for you.