Employment Insurance Act Article 27

Within seven days of the day the Public Employment Service Institution recommends employment, the applicant should submit the reply card for employment to the Public Employment Service Institution.If an applicant does not conduct the above, the Public Employment Service Institution shall stop processing the current unemployment certificate. If the certificate has already been processed, it shall be cancelled.
中文原文 就業保險法第27條
申請人應於公立就業服務機構推介就業之日起七日內,將就業與否回覆卡檢送公立就業服務機構。
申請人未依前項規定辦理者,公立就業服務機構應停止辦理當次失業認定或再認定。
已辦理認定者,應撤銷其認定。

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