163. Every refund or payment of pension benefits made by the pension committee shall constitute a full discharge where the committee has grounds to believe, on the basis of the information at its disposal, that the persons to whom they are made are the persons who are entitled thereto and the refunds or payments are, in other respects, in conformity with the law and the terms of the plan.
Such discharge is valid only with respect to the sums actually paid, or the value thereof.