After registering with Babylon, you can book in with a Babylon therapist at any time, even up until a minute before the session is due to start (providing of course there is a therapist available at that time).
There is no waiting list at Babylon, you can usually be seen by someone within minutes. Therapists’ availability is visible via the App/website. Simply select the therapist you wish to see and book an available appointment slot that is suitable for you.
Appointments are available every week day and some evenings.