Is it still correct that you can call them 14+3=17 days before your trip to book an appointment? I only see 14 days mentioned online and it says in the automated system on the phone that you have to travel within 14 days.
I filed September 22, 2021 but haven’t seen any updates yet. Any idea why some seem to get interview in a couple of months even though processing times on USCIS website says over a year.