A complaint for compensation under section 111 of the Act, 30 U.S.C. 821,shall.

A complaint for compensation shall include:

(a) A short and plain statement of the facts giving rise to the claim, including the period for which compensation is claimed;

(b) The total amount of the compensation claimed, if known; and

(c) A legible copy of any pertinent order of withdrawal or, if a legible copy is not available, the text of the order.

Within 30 days after service of a complaint for compensation, the operator shall file an answer responding to each allegation of the complaint.