The email address you get on the web-site is not the one they respond to very often. Based on my experience in 2013. It took a lot of emails to the email address on the web-site, before a real person finally got back to me.
I gotta dig into my email archives -- give me until midnight tonite to find that email address for you.
I should warn you, the person I emailed there can be "testy", and I learned duding our few weeks of emailing each other to be very careful -- AND NEVER INFLAMMATORY -- in my emails to her.