4.—(1) Subject to paragraph (5), where an adjusting payment of benefit is made under regulation 3, the amount of that payment shall be recovered by means of an adjustment in subsequent payments of benefit in accordance with paragraphs (2) to (4).
(2) A person’s benefit payments shall be adjusted over a period of 12 consecutive weeks (“the adjustment period”).
(3) The first payment from which an adjusting payment of benefit shall be recovered is the payment that is due on the second occasion on which the person is due to receive payment of benefit at fortnightly intervals.
(4) The amount by which the person’s weekly benefit is to be reduced on each occasion during the adjustment period shall be 1/12th of the adjusting payment of benefit.
(5) The Department may, in any particular case or class of case, recover the whole of an adjusting payment of benefit, or the residue of it if partly recovered, by adjusting subsequent payments of the same benefit over any period of time.