The preceding section shall not alter or impair the effect of a payment of principal or interest made by any person; but no endorsement or memorandum of any such payment, written or made upon a promissory note, bill of exchange or other writing by or on behalf of the party to whom such payment has been or purports to have been made, shall be sufficient proof of the payment to take the case out of the provisions of this chapter.
Mass. Gen. Laws ch. 260, § 14