I ordered yesterday (the 21st) and after some time did not get an email with the download link or my serial number. I emailed sales@stardock.com and got an auto reply saying they were out until the 5th or so of January.
Not content with waiting that long, I tried to figure something else out.
I went here:
https://www.stardock.com/support/
:and at the top entered my email address and it re-sent me the email, this time I got it, and I've been happily playing since.
I then had to make an impulse account, which I did, and once activated - because I used the same email - everything was all linked up like it should be.
Hope you're able to work it out.
Best-