I have been living in the UK for the past 5 years and we applied for both K-3 and CR-1. The K3 is going through Islamabad embassy in Pakistan (since we got married in Pakistan) and the CR-1 is going through the London embassy. My case was sent to the London embassy on September 19, 2007 and I am waiting for an interview date from them. Today I got a packet from Islamabad which says that they have scheduled my K3 visa interview for November 20, 2007.
I want to go through with the CR-1 visa because it has more benefits and also I don’t have any plans to go to Pakistan any time soon. What should I do now? Should I contact the Islamabad embassy to cancel the K3 or should I keep it as a backup? Would this have any affect on getting an interview date from the London embassy?
Also I read on some timelines that people know when the embassy received their case. How can I find out if the London embassy has received my case or not?

Never seen someone post who was going both ways in different countries.

But your main issue will be AP/AR, I woud imagine that will be the same either way.

Probably best to post in the S Asia forum.

Congrats on getting an interview date for Pakistan. When we filed we did the k-3 through ghana and the cr-1 through Greece. The Cr-1 ending moving faster in the end so when we got wind that the cr-1 paperwork was complete and sent to greece we called the greek embassy to find out what our next steps were which were to gather all police reports and birth certificate. Call the London embassy next week to find out the status of your case and see if it is possible to schedule an interview during the phone call. I would suggest cancelling the k-3 interview date when the cr-1 interview date is set in London. We cancelled our Ghana k-3 interview well after he recieved his cr-1 visa from Greece. Good luck to you and hope your interview in London will be scheduled soon!!! From the past threads I have read about London, it seems that they move very fast! In any case good luck to you!