(a) Process served by serving the commissioner under this chapter must be directed to the defendant and include:
(1) for an unauthorized person or insurer, the name and address of the person or insurer to be served;
(2) for a risk retention group, the name and address of the group to be served;
(3) for a surplus lines insurer, the name and address of the insurer to be served;
(4) for an unincorporated association, trust, or other organization formed under Chapter 1505, the name and address of the association, trust, or organization; or
(5) for an authorized company, the name and address of the company as it appears in the department records.
(b) Process may be served on the commissioner:
(1) personally by a disinterested person who is at least 18 years of age leaving two copies of the process at the office of the department during regular business hours with:
(A) the commissioner; or
(B) an appointee of the commissioner authorized to receive process; or
(2) by certified or registered mail.
(c) A fee not to exceed $50, payable by check or money order to the department, must accompany each process served on the commissioner.