I've had the same ad play at least 50 times..... I'd been playing for less than a month. And the ad provider(adjungle or something) had a sketchy looking site that you have to email to get any contact. The game itself, takes a bit of a while to get decently far. Some of the "watch for bonus" buttons I've tried about 5 times and then given up because the ads I've let play through didnt register.