Courier fee???
 

I asked this in another thread but thought it may get a quicker reply in its own thread so sorry for multiple asks.

People keep mentioning the courier confirmation payment and how the interviewer at the embassy asks for this but I have seen no mention of this on the US embassy website or on the NVC website. Could someone please explain this to me?

thanks

Re: Courier fee???
 

EDIT: Just seen the thread below with an explanation.