[jiminymcmoogley]

What's legitimate about that? That it saves the inefficiency of leaving an empty slot? I'd have thought a system that offers both the same legitimacy and more fairness too would have test bookings arranged in a stack, where cancelled slots get offered to whoever is booked into the proceeding one should they wish to move it forward, or if they don't, then whoever had the next slot booked after that, and so on. So any holes that come up in the schedule get closed pretty quickly, and nobody gets preferential treatment simply because their driving school happened to own the other slots