One other thing to check is your preferences for your account. There is an option to allow your games to be downloaded for free by media affiliates. I think that option is turned off by default, but maybe you turned it on at some point?
Viewing post in Who downloaded my paid game without payments?
Go to this link while logged in: https://itch.io/user/settings/press
and it is the box for: "Opt my games into itch.io's press system"