(a) payment to a person of a service pension or income support supplement is based upon data in a computer; and
(b) the rate of the pension or supplement is increased or reduced, or the pension or supplement is cancelled or suspended, because of the operation of a computer program approved by the Commission; and
(c) the program causes the change for a reason for which the Commission could determine the change;
the change is taken to have been made because of a determination by the Commission for that reason.
Note: This section does not apply where:
(a) an automatic termination is produced by section 56 or 56A; or
(b) an automatic rate reduction is produced by section 56B.