If it's not there within 5 minutes and if you don't see it in your bulk or junk folder, that usually means it was blocked along the path by a spam filter. Some ISPs block this type of email automatically before it even reaches your own personal mailbox and spam filter
The blog script is programmed to auto-delete blogs that are not activated within a couple of days, and unfortunately I don't have access to them to be able to activate them from this end. That's a much needed feature I hope they add soon.
Do you have any other email addresses, perhaps a free gmail account?