very good questions! I'd like to know the same about what that means.
If our NOA2 was before July 6, that means that the NVC has already created our case (based on their statement)? If our cases are already created, are they just sitting there at NVC waiting to be sent out to the embassy then?
Additionally, am I understanding correctly that the NVC only emails people with their case numbers every other Monday and Tuesday (they just sent out emails with case numbers to some people yesterday and Monday (7/18 and 7/19), next emails should come out on August 1 and 2 if this is true) or are those just the days that the NVC sends the cases to the embassies and we could potentially receive an email with the NVC case number on any given weekday (including Wednesday, Thursday, Friday)?
Thirdly, does NVC only email you the case number once the case is sent to the embassy or could it be while the case is still at NVC waiting to be sent out? (looking for recent, not historical/typical detail here)
I am unable to find a clear answer on these questions so my apologies if this has already been answered elsewhere.