Public Welfare Lottery Issue Act Article 11

Winners shall redeem prize money with the winning tickets and their IDs (or other form of identification) within three months after the relevant drawing. If no claim is made within that period, the prize money shall be deemed as unclaimed prize money, and reverted to the surplus.Prizes, that are below a threshold specified by the Competent Authority, may be paid without ID or other kinds of identification.The winners shall not ask for prize payments to be stopped on the grounds that lottery tickets are lost, stolen or mutilated. The provisions of the proviso of Paragraph 1, Article 720; Article 725 and Article 727 of the Civil Code shall not be applicable.
中文原文 公益彩券發行條例第11條
公益彩券之中獎者,應於兌獎之日起三個月內,憑中獎之公益彩券與本人之身分證或其他身分證明文件依規定具領,逾期未領者視為放棄領獎權利,一律不再發給;逾期未領獎金全數歸入公益彩券盈餘。
公益彩券中獎獎金在主管機關核准之一定金額以下,得不適用前項關於身分證或其他身分證明文件具領獎金之規定。
公益彩券遺失、被盜或滅失者,不得掛失止付,並不適用民法第七百二十條第一項但書、第七百二十五條及第七百二十七條之規定。

English translation for reference only; the Chinese text prevails. Not legal advice.