Formal — to staff
Train · Station
You
すみません、さっき券売機でチャージの金額を間違えてしまったんですが、返金はできますか？
すみません、さっきけんばいきでちゃーじのきんがくをまちがえてしまったんですが、へんきんはできますか？
Excuse me, I just made a mistake with the charge amount on the ticket machine. Is it possible to get a refund?
Romaji: Sumimasen, sakki kenbaiki de chaaji no kingaku o machigaete shimatta n desu ga, henkin wa dekimasu ka? / Reply Romaji: Mishiyou no rireki de areba, kochira de torikeshi shori ga dekimasu. Kaado to ryoushuusho wa omochi desu ka?
Reply
未使用の履歴であれば、こちらで取消処理ができます。カードと領収書はお持ちですか？
みしようのりれきであれば、こちらでとりけししょりができます。かーどとりょうしゅうしょはおもちですか？
If the charged amount hasn't been used yet, we can cancel the transaction. Do you have your card and the receipt?
Gesture & etiquette
Hold out your IC card (like Suica/Pasmo) and the receipt toward the station staff inside the glass booth.
Do not pass through the ticket gate or use the card after making the mistake, as using even 1 yen of the card balance makes refunds impossible at the counter.