On application made under section 60D(2) and without prejudice to section 3, the appropriate court may make an order -
(a) where that court is satisfied that, had the conduct which was the subject of the conviction on which that external financial penalty order was made been carried out in the State, the maximum amount of a penalty that could have been imposed was less than the sum mentioned in that order, reducing the amount that the defendant is to pay to that maximum amount,
(b) where the court is satisfied that there has been partial payment of the sum mentioned in the external financial penalty order, reducing the amount that the defendant is to pay to the difference between the sum mentioned in the order and the amount already paid, or
(c) where the court is satisfied that, in all the circumstances, the defendant should be excused from paying all or part of the sum mentioned in the external financial penalty order, ordering that the amount be so reduced.