How to say “I paid for the gas and a coffee, and only noticed in the car that they'd charged me twice.” in Japanese
In Japanese
ガソリン代とコーヒー代を払ったんだけど、車に戻ってから二重に請求されてたのに気づいた。
Gasorin dai to kōhī dai o haratta n da kedo, kuruma ni modotte kara nijū ni seikyū sareteta no ni kizuita.