US Immigration from Zimbabwe

My fiancee is in Kwazulu Natal and with all the unrest going on over there, I'm legitimately afraid that she could starve there. Is it even a chance that I could ask to speed up the process?

I was looking on the Visa Guide and it says to print out a form I-134 Affidavit of Support. I printed it out from the link on this website, but as I was filling it out, I noticed it has an expiration date of 2/28/21. Does that make this form invalid?

I sent out my I-129F petition and documents last week. According to the tracking, it's been available for pickup in the Dallas PO Box since February 11th. I checked the tracking again today and now it is telling me I need to arrange for Redelivery by February 25th or they will return to sender on February 26th. So they're just not even going to pick it up?

I had my citizenship interview about 3 weeks ago I passed all the test, was told that a decision cannot be made at this time, when my wife file in for me from my home country on a k1 visa she put I had 2 kids, when I file in for my citizenship I put 4 kids on the application, the immigration office asked me why did my wife put 2 kids and I put 4 kids, I told him due to financial reason. do you guys think this will be a problem? I'm very worry