Cases where the Court must set aside judgment entered under Part 13
The Court must set aside a judgment entered under Part 13 if judgment was wrongly entered because.
(3) the whole of the claim was satisfied before judgment was entered.
Cases where the Court may set aside or vary judgment entered under Part 13
In any other case, the Court may, on such conditions as it sees fit, set aside or vary a judgment entered under Part 13 if:
(1) the defendant has a real prospect of successfully defending the claim; or
(2) it appears to the Court that there is some other good reason why:
(a) the judgment should be set aside or varied; or
(b) the defendant should be allowed to defend the claim.
In considering whether to set aside or vary a judgment entered under Part 13, the matters to which the Court must have regard include whether the person seeking to set aside the judgment made an application to do so promptly.