What happens when the player reaches the ads limit of 25 ads per day per player?

Hello, What if the player reaches the maximum allowed ads per day for Unity Ads which is 25 (correct me if I'm wrong). In this case will *Advertisment.IsReady()* return *false* so that my game doesn't display the rewarded ad button. Or if not how will my game get notified that the user has reached the limit. Thank you! :)