In accordance with RCW 36.94.250, any protest of an assessment shall be filed by mail or otherwise with the Clerk of the Council not less than 15 days or more than 45 days from the date of first publication of the notice for the assessment roll for the ULID. All protests filed in a timely manner shall be given a docket number and the date received shall be stamped thereon by the Clerk as prima facie evidence of the date of filing.