PepeTheParrot

It's gonna be up to the officer. Technically, your sponsor doesn't qualify anymore, so you need to find another way, either using assets or a joint Sponsor. But the officer might not ask for updated information, and just approve based on you first sent. I would have a joint sponsor ready in case they ask if the information in the 864 is still current.

O.K. I would still call directly to check, anyone moderately savvy with a computer can spoof a phone number (call you and make it look like they are calling from a different phone number).  Make sure you go to the same office where you got your medical test only.  Good luck!
 
Ah, OK man, it doesn't sound too bad then.  USD7!  It could be that they didn't realise you are missing a vaccine or a test or something like that.  Still, good luck!!

The review could be for something that requires additional checks or treatment.  I don't like the fact that they have asked you to take $1000 to the meeting though.  That sounds sketchy.  Are you sure you got the call from your doctor, and is he/she authorized by the local U.S. embassy?

O.K. I would still call directly to check, anyone moderately savvy with a computer can spoof a phone number (call you and make it look like they are calling from a different phone number).  Make sure you go to the same office where you got your medical test only.  Good luck!
 
Ah, OK man, it doesn't sound too bad then.  USD7!  It could be that they didn't realise you are missing a vaccine or a test or something like that.  Still, good luck!!

Glad to report back to this thread that I had my interview on the 14th, and my case was approved right away! Here's a detailed breakdown:
-The notice said arrive 15 min prior, but we were worried about the security check line so just entered the building a few minutes before. No one said anything. 
-No one was allowed in the building without a mask on, only 4 people were allowed in the elevator at the time, plenty of hand sanitizers, 6 ft distancing for people on a line, and waiting room had a few pair of chairs separated from each other by good distance. 
-We waited about 1.5 hr, there did not seem to be much order in who gets called first because people with both lower and higher waiting number than us got called in before us. 
-Once we got called in, interview itself was very fast; probably less than 10 minutes. The interviewer asked to see our passport and marriage certificate first then asked us to take an oath, then again asked for "any joint document we want to present". We gave him our 2019 joint tax return (just the receipt), joint checking acct statements, and my medical exam. We also showed him our photo album which he looked over and took three random photos.
-The interviewer asked my husband (USC): date and place of my birth, our current address and when we moved in there, if anyone else living with us, and the last date I traveled out of the country <- this last one was a curve ball and my husband was off by an entire year... but the interviewer did not seem to care too much about it.
-The interviewer asked me: date and place of husband's birth, marriage date, if either of us have been married before (we have not), and a bunch of questions from I-485 which he flew through. 
-At the end he gave us a slip that says our result is pending, but he said he will approve our case before we even leave the building... and that's what he did. Case status was updated to "new card being produced" within the hour and couple days later it showed up as "Case approved". 
 
Hope that was helpful for anyone waiting for the interview, I got so much help from this thread since I filed last year. Good luck for all of us!

Approved, 5 minutes after leaving the interview!!!
 
I secured a second sponsor, but it wasn't necessary.  The officer didn't ask for any update on my husbands employment but asked me if I was now working (I am, for three months now).  The agent was nice and I managed to make her laugh.  Our interview lasted 5 minutes and I got an email update stating that I was approved before I got to the car!  We are fortunate that we have thoroughly documented our relationship and had previously submitted many documents to support my A.O.S., K-1 and I-129F applications.