Subject to rule 35, an affidavit that is to be made by a creditor may be made—
(a) if the creditor is a corporation—by a director, secretary, or other principal officer of the corporation, or by a person employed by the corporation who is authorised to make the affidavit on its behalf; or
(b) if the creditor is a company to which a liquidator, provisional liquidator, receiver, administrator or controller has been appointed—by that person; or
(c) in any other case—by the creditor or a person authorised by the creditor to make the affidavit on behalf of the creditor.