under false pretences

if you do something under false pretences, you do it when you have lied about who you are or what you are doing The police charged him with obtaining money under false pretences.

See sail under false colours

Common Names:

Name	Pronounced	Usage
Ajdin	-	Bosnian
Eusebio	-	Spanish, Italian
Marjaana	MAHR-yah:-nah	Finnish
Faye	FAY	English
Roshan	-	Persian, Indian, Hindi, Marathi, Nepali
Noel	['nəuəl]