How to say “Someone has put the wrong key beside this cash box; mine won't fit.” in Japanese
In Japanese
この手提げ金庫の横に置いてある鍵、誰か取り違えたみたい。私の鍵も入らないんだけど。
Kono tesage kinko no yoko ni oite aru kagi, dareka torichigaeta mitai. Watashi no kagi mo hairanai n da kedo.