That's the form I've filled out on a few occasions, to ask questions about the products. There have also been complaints here in the forum before about people not able to get responses from the store after placing orders. I think perhaps the store is not fully functioning or not a big priority. That's OK, because the official product is available through many distributors, and in fact Adafruit is not only the store, but it is the manufacturer of boards such as the Uno.