Hi
@zeru, it sound by far better now!! Your initial posting was frustrating.
The most important message is the one on the last line in your post here. They took "copy of your ID" means, for me they are going to check with your employer if what you presented is genuine or not. Another proof for this is they said they will call you which means the remaining work to be done is not from your side but from the embassy side. So, in my opinion, what you should worry about is the response they may get from your employer. Good Luck.
In the same token, I hope
@abi328 learns something from this. You know there are a lot of people who qualified by education and never asked a letter from their employer. However, if the CO feels like it and if by his/her judgement, there is something to suspect, you will be questioned and you can not argue except leaving the room with the white paper of the AP status. What is important is not to proof to the forum that you become successful without authenticating the said document, rather what is important is you go to your interview over prepared and with full confidence. If you are student at Gonder University and you think going to Adama will spoil your semester, you can, for example, collect your transcript up to last semester and you try some credit transfer to complete your degree in the US (this may even give you better opportunity than the degree from Gonder - but not sure how the credit transfer works).