(a) There shall be a provision as follows:
“Notice of Claim:
(b) In a policy providing a loss-of-time benefit which may be payable for at least 2 years, an insurer may at its option insert the following between the first and second sentences of the above provision:
“Subject to the qualifications set forth below, if the insured suffers loss of time on account of disability for which indemnity may be payable for at least two years, he/she shall, at least once in every six months after having given notice of the claim, give to the company notice of continuance of the disability, except in the event of legal incapacity. The period of six months following any filing of proof by the insured or any payment by the company on account of such claim or any denial of liability in whole or in part by the company shall be excluded in applying this provision. Delay in the giving of such notice shall not impair the insured's right to any indemnity which would otherwise have accrued during the period of six months preceding the date on which such notice is actually given.”