(1) The seller or the buyer must disclose the sale to the insurer without undue delay. Where no disclosure has been made, the insurer is not obliged to effect payment if the insured event occurs later than one month after the time when the insurer should have received the disclosure, and the insurer would not have concluded the contract with the buyer which existed with the seller.
(2) In derogation from subsection (1) sentence 2, the insurer is obliged to effect payment if he or she knew of the sale at such time as he or she should have received the disclosure, or if the time limit for the insurer to terminate the contract had expired at the time of the occurrence of the insured event, and he or she did not terminate the contract.