I wouldn't worry about this at the moment, just know to keep an eye on them.
You'll notice that all the contact details are still to your company. Try to contact them to see what they are up to, and why they have a copy of your page. But other than that, I wouldn't worry too much about it. You need to focus on your business. The success or failure of your business likely has absolutely nothing to do with the whoever is running dndwebtech.com.
