Do not use the "Petition to the Director" form to file a "Petition to the Director to Review Denial of a Letter of Protest," because it will become part of the public record. Instead, use the "Letter of Protest" form. Therein, indicate in the body of the submission that it is a "Petition to the Director - Letter of Protest Denied." You must comply with the requirements for filing a Petition to the Director including the submission of the $100 petition fee. 37 C.F.R. §2.146. You may include authorization to charge the fee to a USPTO Deposit Account or submit a completed credit card authorization form with your filing.