Formal — to staff
Ticket · Vending · Machine
You
このお札、券売機に何度入れても戻ってきちゃうんですけど、交換してもらえますか？
このおさつ、けんばいきになんどいれてももどってきちゃうんですけど、こうかんしてもらえますか？
This bill keeps spitting out of the ticket machine no matter how many times I insert it. Could you exchange it for another one?
Romaji: Kono osatsu, kenbaiki ni nando iretemo modotte kichau ndesu kedo, kōkan shitemoraemasu ka? / Reply Romaji: A, suimasen. Shiwa ga ōi to hairanai n'desu yo ne. Betsu no sen-en satsu to kōkan shimasu ne.
Reply
あ、すいません。シワが多いと入らないんですよね。別の千円札と交換しますね。
あ、すいません。しわがおおいとはいらないんですよね。べつのせんえんさつとこうかんしますね。
Ah, sorry about that. If there are too many wrinkles, it won't go in. Let me swap it for a crisper 1,000 yen bill.
Gesture & etiquette
Hold the crumpled or rejected bill with both hands and present it politely to the shop staff.
Do not hit or shake the ticket machine out of frustration. Simply bring the rejected cash directly to the counter or kitchen staff.