(1) Subject to sub-article (2), where benefit has been awarded and is in payment to a person, the right to any sum payable by way of the benefit shall be extinguished where payment of the benefit is not obtained within 6 months.

(2) Sub-article (1) shall not apply in respect of any benefit where a deciding officer or an appeals officer is satisfied that entitlement to the payment exists and where -

(a) the sum payable is not received within the time allowed in sub-article (1) due to the mental or other incapacity of the beneficiary or his or her approved agent, or

(b) in any other case where a deciding officer or appeals officer is satisfied that there was good cause for the delay in claiming the payment within the time allowed in sub-article (1).