None of the following acts by or on behalf of an insurer shall be deemed to constitute a waiver of any provision of a policy or of any defense of the insurer:
(1) Acknowledgment of the receipt of notice of loss or claim under the policy.
(2) Providing forms for reporting a loss or claim, for giving information relative thereto, or for making proof of loss, or receiving or acknowledging receipt of any such forms or proofs completed or incompleted.
(3) Investigating any loss or claim under any policy or engaging in negotiations considering a possible settlement of any such loss or claim.