With "Exemption from Quarantine (aka Test & Go)", it's 1 night OR negative result. You should be free to venture out now. Sadly, it sounds like the hotel doesn't have accurate information, but maybe their own process it different with their certificate.
If you already have your Thailand Plus certificate based on the SHA+, you should be good. Phuket tests at the airport anyway, so the only thing the hotel should do is pick you up and give you an ATK test kit to take with you after leaving.
Perhaps I should've chosen my words more wisely. As I was doing all the recent research for domestic travel, I did not come across PCR required (though now I've discovered there is at least 1).
Maybe "I haven't seen" is more senantically correct than "I've never seen" but yes, your snide reply definitely came across jerkish.
Especially for the guy who only recently learned the word เนเธเน ๐๐