いがいだましじゃなかったです
貽貝騙しじゃなかったです
igai damashija nakattadesu

Noun
Desu Copula

The polite, past negative form of いがいだまし

1. Wasn't a scam.; Wasn't deceiving.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana