Seriously. Advertisers place ads and when their purchase package is complete, it is over.
They can then purchase more ad packages if they want to.
So I can't tell you if that particular ad campaign is over for good or if there will be more
ad purchases or what. All you can do is continue to check for them from time to time.
I don't know how you can click them for 14 hours straight! I'd be cross eyed. I think the
most I ever clicked at one time period was 700 ads. More recently, I know I clicked 500
ads in one sitting and then the next day I managed to click over 100 more and all that
about had me standing on my head.