(1) A premium finance agreement may provide for the payment by the insured of a delinquency and collection charge on each installment in default for a period of not less than 5 days in an amount not to exceed $10 or 5 percent of the delinquent installment, whichever is greater; provided that if the premium finance agreement is primarily for personal, family, or household purposes, the delinquency and collection charge shall not exceed $10. Only one such delinquency and collection charge may be collected on any such installment regardless of the period during which it remains in default.

(2) A premium finance agreement may also provide for the payment of attorney's fees not exceeding 20 percent of the amount due and payable under the agreement if it is referred for collection to an attorney not a salaried employee of the premium finance company holding the agreement.

(3) Notwithstanding the provisions of this section, a premium finance company shall not take, receive from, or charge an insured any cancellation charge or attorney's fees unless, within 10 days after default in the payment of any installment of a premium finance agreement, the premium finance company has mailed a notice of the default to the insured at his address as shown on the agreement and to any insurance agent named therein at his place of business as shown giving the insured at least 5 days within which to make the payment in default.