Impulse is now owned by GameStop and not to be used to install or update Stardock products.
Please refer here - https://forums.wincustomize.com/409931
"Anyway, at the moment we are in a transition period. Specifically, we are transitioning away from Impulse being your main download and update method. Going forward, you can access all of your registrations and download links for Stardock software by logging in here:
https://store.stardock.com/myaccount/products
This will give you a list of everything that is on your account, along with your serial numbers and installer download links. That's right, download links directly to the latest stable version of the software."
and here - https://forums.wincustomize.com/413462
If you have a ticket number then post it here in a comment.
Do not resend another request email until you hear back from a support tech as tickets are answered on a first-in first-out and sending another email will move your position in the response queue.
Support are off for the weekend.