At this point, why not just add the link to report your non-UGC. If this is what they want, give it to them. You can just ignore the reports on the backend. You can probably remove it next update when you don't get Anthony since it's pretty clear it's just one stubborn, lazy reviewer.
All that said - the Play Store and App Store review hell is one dystopia I wouldn't wish on my worst enemy. I'm so happy to work on the web now.