(a) Charges. A complaint shall give a plain and concise description of the allegations which constitute the basis for the proceeding. A complaint shall be deemed sufficient if it fairly informs the respondent of the charges against him/her so that the respondent is able to prepare a defense.

(b) Demand for answer. In the complaint, or in a separate paper attached to the complaint, notification shall be given of the place and time within which the respondent shall file his/her answer, which time shall not be less than 15 days from the date of service of the complaint, and notice shall be given that a decision by default may be rendered against the respondent in the event he/she fails to file an answer as required.