208(3)A beneficiary designated under section 207 may upon the death by accident of the person insured or group person insured enforce for his own benefit, and a trustee appointed pursuant to section 209 may enforce as trustee, the payment of insurance money payable to him, and the payment to the beneficiary or trustee discharges the insurer to the extent of the amount paid, but the insurer may set up any defence that it could have set up against the insured or his personal representative.