Mr. Mark Synnott:

I will draw inference from what the sequence of events may have been. People going online to make a booking on the website today from the start will be presented with the slots in the test centre they default to - the one they used last. It also presents the appointments available in neighbouring centres. Underneath that it clearly states that if a suitable appointment is not available, people can add themselves to our waiting list. Going down that route gives a sequence of steps to follow.