Formal — to staff
Vending · Machine
You
自動販売機にお金を入れたのですが、商品が出てきません。返金をお願いできますか?
じどうはんばいきにおかねをいれたのですが、しょうひんがでてきません。へんきんをおねがいできますか?
I put money into the vending machine, but the product didn't come out. Can I get a refund?
Romaji: Jidōhanbaiki ni okane o ireta no desu ga, shōhin ga dete kimasen. Henkin o onegai dekimasu ka? / Reply Romaji: Mōshiwake gozaimasen. Kakunin itashimasu node, omachi itadakemasu ka?
Reply
申し訳ございません。確認いたしますので、お待ちいただけますか?
もうしわけございません。かくにんいたしますので、おまちいただけますか?
We apologize. Please wait a moment while we check it.
Gesture & etiquette
Pointing towards the vending machine, then holding out open hands to indicate no item, then a hand gesture for money.
Do not get angry or raise your voice. Be polite. Some machines have a contact number, but asking a nearby shop/staff is often easier for tourists.