French phrase
L'addition est incorrecte.
Meaning
The bill is incorrect.
When to use it
A brief statement pointing out an error in the bill. It can sound casual, while polite wording softens the tone.
Example dialogue
L'addition est incorrecte. Je crois qu'il y a une erreur.
The bill is incorrect. I think there's an error.
Pardon, je vais contrôler la facture.
Sorry, I'll check the bill.