Have you tried checking your email spam folder? If emails from MyCastingFile are being classified as spam, one way to help is to add the email address firstname.lastname@example.org to your address book. This way, emails will be delivered to your inbox instead of the spam folder. Here’s how to do that: http://support2.constantcontact.com/articles/FAQ/2753
If you're a Pro member, make sure you have email notifications enabled. You can do so by visiting your Pro Settings page and scrolling down to the Email Notifications section.