If a candidate cannot complete a campaign donation return, the candidate may:
(a) prepare the return to the extent possible; and
(b) give the Electoral Commission a notice stating:
(i) the return is incomplete; and
(ii) the particulars the candidate cannot obtain; and
(iii) the reasons why the candidate cannot obtain the particulars; and
(iv) if the candidate believes on reasonable grounds that another person can give the particulars, the name and address of the person.