Hi.

My Fiancé has his interview for a k-1 visa in Frankfurt Germany on September 6th. It is now the 17th and it hasn't come in the mail yet. I'm getting worried, should I? How long does it usually take to come?

Hi,I had my Interview in Frankfurt also,they told me it would take up to a week for it to arrive. Mine arrived 4 days after the actual interview.
Maybe you should tell him to call them or send them an email,you can only reach the immigration people unit in Frankfurt at the embassy over the phone Tuesdays and Thursdays I think until 2 or 3 in the afternoon.
If not Emailkontact them and just ask,maybe there was some type of missunderstanding cos they do give you the chance to pick it up there.

You should call immediately or send an email to the visa control section. This is much too long unless there here been long periods of embassy closures due to holidays, etc.

wow I never leave MENA forum much but a post there would sound like this " my interview was a year and a half ago and we still have not recieved the visa should I be worried?" Be Thankful your dealing with a European consulate... Best wishes to you