a. The Chief Building Official may authorize refunding of any fee hereunder which was erroneously paid or collected.

b. The Chief Building Official may authorize refunding of not more than 80% of the plan review fee paid when an application for a permit, for which a plan review fee has been paid, is withdrawn or canceled before any plan reviewing is done.

c. The chief building official shall not authorize refunding of any fee paid except upon receipt of a written application filed by the original permittee not later than 180 days after the date of fee payment.