How did you send the email? Did you use the 'Contact Us' page or the tab in the bottom right corner of the website? I sent an email to them yesterday using the 'Contact Us' page, and didn't hear anything this morning, so I emailed them again using the tab in the corner, asking if they had received my original email, and got a reply within a couple of hours saying they had already replied to it. Either I put in the wrong email when submitting the form, or the form on the 'Contact Us' page is broken. If you did use the form on the page, try using the contact tab instead.