In the event of a total loss or destruction of any personal property on which the amount of the appraised or agreed loss is less than the total amount insured thereon, the insurer shall return to the insured the unearned premium for the excess of insurance over the appraised or agreed loss, to be paid at the same time and in the same manner as the loss shall be paid; and the unearned premium shall be a just and legal claim against the insurer.
Fla. Stat. § 627.705