We give each e-shop a coefficient based on the number of great offers and new bottles, which we use to decide which e-shops to check more frequently than others to find you the best offers as quickly as possible. Usually, we check most eshops multiple times per day.
Sometimes you get a notification, but the bottle is no longer in stock. That means that someone bought it after we sent you the email or the e-shop took it down and is not selling it anymore.