73.—(1) An application under regulation 69 (applications to resolve disagreements) or 71 (reference of disagreement for reconsideration by Scottish Ministers) may be made or continued on behalf of the applicant by a representative nominated by the applicant.
(2) Where a person who has the right to make or has made such an application dies, the application may be made or continued on the person's behalf by the person's executor.
(3) Where such a person is under a legal disability because of nonage or is or becomes otherwise incapable of acting for himself or herself, the application may be made or continued on the person's behalf by a member of the person's family or some other person suitable to represent the person.
(4) Where a representative is nominated before an application is made, the application must specify the representative's full name and address and whether that address is to be used for service on the applicant of any documents in connection with the application.
(5) Where a representative's address is not to be so used the representative must be sent a copy of—
(a)a notice under regulation 70(1) (notice of decisions on disagreements) or 72(1) (notice of decisions on reconsideration of disagreement); or
(b)an interim reply under regulation 70(2) (notice of decisions on disagreements) or 72(2) (notice of decisions on reconsideration of disagreement).