付つけ掛かけ

noun

overcharge; overcharging

Refers to charging more than the proper amount, especially in a commercial context. Can imply a deliberate or accidental extra charge.

• この店みせは付つけ掛かけが多おおいと評ひょう判ばんだ。

  This shop has a reputation for frequent overcharging.

• レシートを確かく認にんしたら付つけ掛かけがあった。

  When I checked the receipt, there was an overcharge.