Who is your email provider? Talktalk have been having problems for several days, so I was not receiving any notifications.
Try sending an email to yourself. If that fails, contact your provider - not by email!
If self-mail works, send a message to admin, use the Messages icon at top of page.
I can confirm that the emails are being sent this end, have you checked your junk/spam folder? When was the last one you received?
Do you have an alternative email address you could use to test things.
It's difficult because our system reports that your emails are being despatched successfully.
You can see a list of emails sent to your account here.