Hi @edgesandnets - hope you're keeping well, and great question!
If you've created a new subdomain and wish for it to be monetized, then you've done exactly the right thing and notify Ezoic! We need to review any new subdomains that are added to sites to make sure the content is within policy, but it's usually quite quick.
If you can respond to this thread with the subdomain in question (you don't need to use the root/full domain, just something like sub.***site.com - so that we can make sure we're looking/working in the right place) we can get that started for you now 🙂