Hi,I was looking yesterday I have one booked for mid July and want postpone it for a few weeks but the earliest cancellations I saw were end of September, October and December.You need to look around 9.30am to 10am morning and in the evening around eight or nine o'clock these are the times I came across about 5 cancellations. But they will probably be other times aswell, keep looking on the Dvsa website.Monday's 6am they release slots but usually the slots are 4 or 5 months away.How soon are you looking for?