Open the booking and choose Something went wrong. Pick what happened (they did not turn up, cancelled late outside the app, or arrived too late) and what happens to the deposit: keep it, refund half, or refund it.
Your late-cancel policy at the time they booked is the starting point, and the client sees it.
We email the client what you recorded. They have 7 days to tell us if they disagree, and if they do, we look at the booking and messages and may ask you for your side.