At any time not more than ninety days preceding any municipal election, but at least thirty days prior to such election, any eligible person may become a candidate for any office elective under the provisions of this charter either by filing an affidavit with the City Administrator, or by having an application in his behalf signed by at least five qualified voters and containing his endorsed acceptance thereon. Such affidavit or application shall be on a form furnished by the City and stating the full name and address of the candidate and the office for which he is a candidate, together with the ward which he seeks to represent unless the office is one for which election is at large. At the time of filing such affidavit or application the City Administrator shall collect a fee of one dollar.