When you log in to your account you can accept or reject a booking. Click on Offers. There you can see your Selected Offers. These offers you can accept immediately.
Right next to Selected Offers you find Countdown Offers. You can subscribe to these offers. Countdown offers are not always matching the preferences you have set, so please check the booking time, date and location carefully. After a certain amount of hours, the customer receives a list with all the providers that subscribed. The customer will eventually make a choice between those providers. You will get notified if the customer has selected you.