from my signature u can see my bad history with the postal system in my country Sudan, i changed my address to evade that mishap to another arabian gulf country ( i have relatives overthere) but it seems that I'm not that fortunate either way
They have been haunting there postal service for the past 10 days with no results !!!
I guess thats one more reason to seek immigration to the US
Gosh, i didn't really look closely at your signature until you mentioned it.
Got your ist NL in September 2007, that's some postal service you've got in Sudan.
The way suggestion that i'm going to give you works for DV process in Nigeria, so you'll need to confirm with others in Sudan if such an advice is being practiced over there.
First, send an email to the KCC using an email address such as hotmail, gmail etc, (don't use a yahoo account) asking them to confirm your interview date( i.e if you have not done so already). Once you've gotten the email reply confirming your interview date, take a copy of email confirmation, your ist NL, and International passport to the US Embassy, Sudan.
Explain to them by showing them the 3 items, that your 2nd NL is delayed, then ask for the medical forms which will be used to start your medical examination at the Embassy specified hospital.
Please, take note that it's only one hospital approved to perform such test in Nigeria, so i don't know what obtains in your country.
If this works, you can get to start your medical before your 2nd NL shows up finally.
At worst, if the 2nd NL does not show up before the interview date then you can present the email confirmation to the security men for admittance on the interview date.
Again, let me say again that this suggestion has worked in Nigeria.