Upon mailing of notice of his or her decision, as provided in Sections 2.124.2080 and 2.124.2100 of this chapter relating to a claim for benefits or a claim for refund, the decision of the retirement system manager shall be final, binding and conclusive upon the member, the system, and the city, except to the extent that said decision is subject to appeal to the retirement hearing commission. The retirement system manager shall consider and decide upon each application for benefits on its own merits and no decision on any given application shall be considered to be precedent to be followed by the manager in deciding any subsequent application. (Prior code § 34.13.1311)