Glenno89

My K1 visa interview was in London. It was a much less intense interview than I expected. I spent less than 5 minutes talking to the officer. She was busy photocopying some of my documents whilst asking me questions and she only asked me how many times we have met each other (we had two visits in England and three in America across that two year period) and the other question was where she lives and what her job is I think. She then told me I was done and they were happy to approve me (still dependent on customs officer decision at U.S. Airport)

In the UK (and at almost every consulate now), they just communicate with the beneficiary over email. He'll need to put his current address in any forms he has to fill out for the actual visa application, and for where to send his passport and the sealed envelope back to, but he won't get any packets in the mail.

Yes you have to inform uk embassy about your changed address when uk embassy will receive your case from NVC so they can send you p3...(that’s what i have to do)but for USCIS you don’t need to