Some of you have registered with this website but we are unable to activate you.  The problem is that your email address does not work.  We get a message like: 

I’m afraid I wasn’t able to deliver your message to the following addresses.
This is a permanent error; I’ve given up. Sorry it didn’t work out.

When we do, we delete that registration, but there’s no way to inform you since we don’t have your email.  So if your registration hasn’t gone through within 24 hours, try again, and make sure you use a working email address!