I've had a little communication back and forth with them after my initial purchase inquiries, and I've always gotten a prompt and thorough response. However, I had one inquiry sent to Trent (the Sales Manager) that I got no response from for several days. After the service I had been receiving, and the wonderful responses others have been posting about, it was perplexing. So I sent a follow-up email and got an almost instantaneous response.
When we read about such great customer service, and our experience has been so good up to a given point, we tend to forget these folks are people too. If I had a nickel for every work email I've gotten distracted from and didn't get a reply out as quickly as I intended, I'd have my second Skout airgun by now. Combine that with what is probably the biggest sales promotional week of the year in the US, and I'm sure they are just busy and trying to get to everyone. Keeping in mind any time difference with your country, I'll bet if you send a new email indicating it's a "follow-up" you'll hear back pretty quickly.