cogadh: Stardock is actually a pretty small company of less than 100 employees (way less, something like 60-70 total employees last I heard), so its not really surprising that they don't have a "European branch". Also, you can bet that most of their employees are not dedicated to customer service (i.e. they are mostly developers and software engineers). Given that, it is fairly surprising that their support can be as responsive as it is... now the effectiveness of their support, that can be lacking. Last time I needed help from them, they did respond within 48 hours, but after about a week of going back and forth with them, I still had to fix my problem on my own. I can only imagine how bad it can be for European customers, with time zone differences, potential language barriers, currency exchange rates, etc.
As for your specific issue, I wouldn't expect it to be responded to or resolved in any fashion before Monday. With Christmas Eve tomorrow, I wouldn't be surprised if they take a half day like most of the businesses in Michigan and let everything slide until after the weekend.
They're up to 60 employees now? Dang, last I saw they were still less than 40. Oh well. :)