Customize these politebuteffective form letters to get consumer help and problem resolution. It confirms the details of the complaint.Address customer complaints professionally with our acknowledgment of customer complaint letter template. Create and download a letter for free! The process of investigation is. For example, have a standard paragraph thanking them for the message, acknowledging their concern, apologizing that the incident happened, etc. The following items express the administrative conditions and requirements of the. Request for Proposals (RFP). Assistant Attorney General Jeffrey B. Clark recently allowed his dues to lapse and apologized to a court over the mishap. Defendant's Letter of Release of Exhibits - DLRE (FAM). DEMD.