Forum Moderators: martinibuster
I had similar on one of the channels and contacted Adsense support. Answer wasn't very clear, but if I understood correctly, someone did reload page from within their browser's cache and clicked ads, which did not count towards page-views, but clicks were legitimate. The numbers were very small too, like 1 pageview, 2 clicks.
Whenever you see anything in stats that rises your eyebrows, absolutely contact Adsense from your control panel, they are responsive.
R