you made a mistake
Hai sbagliato e chi sbaglia paga.
You made a mistake and those who make mistakes pay.
— Addio mia concubina (1993)
You have the wrong number.
Hai sbagliato, hai seguito il mio errore.
You were wrong, you followed my mistake.
— Addio mia concubina (1993)
Hai sbagliato un'altra volta, Bill.
You got it wrong again, Bill.
— Love Actually - L'amore davvero (2003)