(1) Nothing in this part applies to nonrenewal, except that in the event the company does not intend to renew the contract, it shall mail or deliver to the named insured, at the address shown in the policy, not less than thirty (30) days' notice of its intention not to renew. Proof of mailing of notice shall be sufficient proof of notice.
(2) Unless the nonrenewal notice contains a reason for the nonrenewal action, the notice shall advise the insured that upon written request of the named insured, mailed or delivered to the insurer not later than fifteen (15) days after the effective date of the nonrenewal, the insurer will within twenty (20) days mail to the named insured a written statement specifying a reason for the nonrenewal action. There shall be no liability on the part of and no cause of action of any nature shall arise against any insurer, its authorized representative, its agents, its employees, or against any firm, person or corporation furnishing information to the insurer, as to reason for nonrenewal.