6.97.—(1) Forms to be used for the purpose of proving bankruptcy debts shall be sent out by the official receiver or the trustee to every creditor of the bankrupt who is known to the sender, or is identified in the bankrupt's statement of affairs.
(2) The forms shall accompany (whichever is first)—
(a)the notice to creditors under section 293(2) (official receiver's decision not to call meeting of creditors), or
(b)the first notice calling a meeting of creditors, or
(c)where a certificate of summary administration has been issued by the court, the notice sent by the official receiver under Rule 6.49(2), or
(d)where a trustee is appointed by the court, the notice of his appointment sent by him to creditors.
(3) Where, with the leave of the court under section 297(7), the trustee advertises his appointment, he shall send proofs to the creditors within 4 months after the date of the bankruptcy order.
(4) The above paragraphs of this Rule are subject to any order of the court dispensing with the requirement to send out forms of proof, or altering the time at which the forms are to be sent.