We understand your disappointment when this happens. You can book sessions up to 4 days in advance and for members at Level 3 or above, up to 7 days in advance.
We recommend that you plan and book your sessions in advance since most of our customers' book sessions in advance. This way the likelihood of finding a booked out session will be less. At times you will also see slots open up about an hour before the session.
Do keep an eye out for these as they run out quickly. Write to us at email@example.com if you are facing technical issues in booking your sessions.