When I placed a special order, I was contacted by Stephen. His email is firstname.lastname@example.org. They also have a phone number. Sorry, I manage a CS dept for a living and I don't know why you're posting here when you can contact RG's person in charge of shipping directly.
Hope it arrives soon. My Pug did very well on it. (We were pleased to *not* see a lot of dramatic stuff in his stool, but her really perked up and stayed that way.)