Garia

you can upload 2 employer letters, but need to speerate it. upload one then select optional to add one more proof of current employer letter.

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Also, I-864 & I-864A have to sperate it, it you dont, NVC might rejected it.

did they received you passport? od gave you any paper?

keep checking online everyday and noticed the update, when is shows ISSUED, it means you can recevie soon.

Currently working means you are still working there, you dont have to put the end date, but you can fill in the started date. For example,  present is from 2010.1 to now, previous job is the date to 2009.12.

In the NVC online system, when you log it in, it shows your case and the applicant , family members. In the chart you if you submitted your from it shows submitted, if you didnt, it shows incompleted.

seems the gov. didnt update the newest forms. If that so, you can you use the one on uscis which you can download.