(a) The compensation of all officers and employees of the city whose compensation is not provided for herein shall be fixed by the appointing officer or body within the limits of budget appropriations and in accordance with any pay plan adopted by the council.
(b) Except as otherwise provided by law, the respective salaries and compensation of officers and employees as fixed by, or pursuant to, this charter shall be in full for all services to the city of such officers or employees and shall be in lieu of all fees, commissions, and other compensation receivable by such officers or employees for such services. Such fees, commissions, and compensations shall belong to the city and shall be collected and accounted for by such officers or employees and be paid into the city treasury. A statement thereof shall be filed periodically with the city manager. The provisions of this section shall not apply to fees, commissions, or other compensation paid by the County of Wayne to any officer or employee serving as a city representative on the board of supervisors or to the constable.
(c) Nothing contained in this section shall prohibit the payment of necessary bona fide expenses actually incurred in or for any service on behalf of the city.