@Michael *************
>I need to get passport for Fiancé
I'm sorry, but what does that mean? If you're getting a new passport, you'd contact YOUR country's embassy in Thailand.
IF you're outside of Thailand, you'll go to the Thai embassy of whatever country you're inside.
If you're trying to get a new visa INSIDE Thailand, you'll go to the nearest immigration office (but there's no such thing as a Fiance visa for Thailand).