Every contract entered into by the city for the use of any project or the services or facilities thereof acquired, constructed or completed from the proceeds of the sale of revenue bonds shall incorporate by reference the provisions of any ordinance pursuant to which the bonds were issued. Every such contract or lease shall also refer to the provisions of the Greater Municipality Parking Law with respect to the obligation of the city to fix fees and charges to meet the payments provided for in the Greater Municipality Parking Law and the proceedings for the issuance of revenue bonds and all payments required to be made to the city under such contract shall be subject to increase if and when the city is required to increase rates or charges to meet its obligations hereunder and under any ordinance providing for the issuance of bonds.