20. In the case of a mayor who is not entitled to additional remuneration under the first paragraph of section 18, where the amount equal to one-half of the remuneration prescribed under sections 12 and 13 exceeds the maximum prescribed under section 22, the excess amount is paid as remuneration rather than as an expense allowance.
The same applies to a member of the council who is entitled to such additional remuneration, where the amount equal to one-half of the aggregate of the additional remuneration and the remuneration prescribed under sections 12 and 13 or under section 15 exceeds the maximum prescribed under section 22.