Negotiable Instruments Act Article 101

If a part of the amount of a bill is accepted, the person who discharges the unaccepted part of the bill by payment may require the holder to note the fact on the bill and to issue and deliver a receipt for their payment separately together with a duplicate of the bill and the protest.
中文原文 票據法第101條
匯票金額一部分獲承兌時,清償未獲承兌部分之人,得要求執票人在匯票上記載其事由,另行出具收據,並交出匯票之謄本及拒絕承兌證書。

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