(a) A premium finance company shall not charge, contract for, receive or collect a service charge other than as permitted by this chapter.
(b) The service charge is to be computed on the balance of the premiums due, after subtracting the down payment made by the insured in accordance with the premium finance agreement, from the effective date of the insurance coverage for which the premiums are being advanced to and including the date when the final installment is payable under the premium finance agreement.
(c) The maximum service charge permissible shall be $9.00 per $100 per year plus an additional nonrefundable initial charge of $10 per premium finance contract and the said maximum service charge shall include any interest charged on such loans within the limitations thereon stated above. Any service charge, including interest, which exceeds the said permissible maximum rate limitation, shall be considered usurious and any person paying such usurious rate shall be entitled to all the remedies permitted under § 2304 of Title 6 for recovery of funds in an usurious loan.
(d) Notwithstanding any provisions to the contrary within any premium finance agreements, any insured may prepay obligations under any such agreement in full at any time. In such event the insured shall receive a refund credit. The amount of such refund credit shall represent at least as great a proportion of the service charge as the sum of the periodic balances after the month in which prepayment is made bears to the sum of all periodic balances under the schedule of installments in the agreement. Where the amount of the refund credit is less than $1.00, no refund need be made. If in addition to the service charge, an additional, nonrefundable initial charge as permitted in subsection (c) of this section was imposed, such additional charge need not be refunded nor taken into consideration in computing the refund credit.
(e) No premium finance company shall induce an insured to become obligated under more than 1 premium finance agreement for the purpose of obtaining more than 1 additional nonrefundable initial charge.