“35. Three things are clear from this passage. First, in relation to a final order, it is not sufficient to show that there was a change in circumstances or that the facts were misstated at the time of the original decision. Second, the importance of finality is a critical consideration in an application to set aside a final order. Third, the circumstances in which it might be appropriate to set aside a final order will be very rare. 36. Precisely what needs to be established (aside from the examples given by Hamblen LJ in the paragraph quoted above) in order to set aside a final order was not spelt out in Terry v BCS. In the Prompt Motors decision (above), HHJ Paul Mathews said, at [31] that he doubted whether anything less than fraud would do. In Madison v Various (above), Hildyard J, having noted the uncertainty in the authorities as to whether Rule 3.1(7) applies at all to final orders and concluding that it does, said that ‘it will be the truly exceptional case where it might be exercised.’”