Refunds — Money deposited for license.

Whenever any person shall deposit money with the Collector for the purpose of procuring a license, and said license shall have been subsequently refused by legal authority, it shall be the duty of the Collector to refund the money so deposited, deducting therefrom an amount justly proportionate to the time during which such license shall have been used by the applicant therefor, or his representatives, and charge the amount so refunded to the fund which was credited with the original deposit.