Proofs of Loss - Written proof of loss must be furnished to the Company at its said office in case of claim for loss for which this plan provides any periodic payment contingent upon continuing loss within 90 days after termination of each period for which The Company is liable and in case of claim for any other loss within 90 days after the date of such loss. Failure to furnish proof within the time required shall not invalidate nor reduce any claim if it is not reasonably possible to give proof within such time, provided proof is furnished as soon as reasonably possible.