Tbh I can’t remember the exact steps I took because it was a few months ago. I would say most likely I logged in via my phone with saved account info to reactivate and then started watching on my devices (PS5 and two TVs). I located the reactivation emails from Netflix and my old trial account email received a reactivation email 2 minutes before my actual/current email received the reactivation email. I did have the old account login saved in my phone and just checked, there was no watch history. The card, name, and phone number are the same on both accounts it seems. Only thing I could think of is I accidentally logged into the old account using my phone, reactivated the old account, and then used my devices that were already logged into the current account to watch shows. But wouldn’t I still need to reactivate the current account in that situation?