Hiya Linda,
This really DOES sounds like yet another case of the USCIS's left hand not knowing what the right hand is doing, as you said.
Its 3 am here so your last post seems a bit fuzzy to me. Please forgive me if Im asking you to repeat information youve already posted.
From the sounds of your last post Im guessing that you were legally resident in the UK when the I-130 was filed and that it was filed by DCF through the US Embassy in London. After the petition was filed it sounds like you left the UK to go back to work in the USA. After that the I-130 came back approved. Right?
If thats so, regardless of what your K-3 status is, you should persue the approved I-130. Your part of the visa application is now complete. Your husband needs to file a DS-230 via the US Embassy in London. When they recieve his DS-230 and the checklist completed, they will arrange for an interview date. At the interview he will be given his CR-1 visa which will allow him to enter the US to recieve his Green Card.
Why you also persued the K-3 I have no idea. K-3 and CR-1 are the same and require the same petition from you, but are filed on different soil. K-3s are for US based petitions and CR-1s are for UK based petitions. Your just duplicating work and handing over way more money than you ever needed to.
It also sounds like you think if you continue down the path of the K-3 that your husband will be able to visit you in the US before he gets his visa. ANY travel to the US while an application is pending will almost always result in rejection at boarder control. This is true for both K-3 and CR-1 visa applications. Until he has the actual visa in hand he'll likely be sent back to the UK, no questions asked. There is only one case I have personally heard of where US boarder control allowed a UK citizen to visit the US while their visa application was pending and that was due to the fact that their father-in-law was on his deathbed. Even then the UK citizen had to carry with him evidence that he had a return ticket, a job to return to and other obligations in the UK before they would allow him in.
Im afraid that once you have applied you'll be seperated until the visa interview has happened and the visa is in hand.
In my best advice, though Im no lawyer mind you, Id continue with the CR-1. It is the most direct path and its already half way completed. You'll likely get it sorted before christmas time so you'll both be together. I wouldnt hand over any more money for the K-3.
Hope that helps. Sorry if my post its sketchy. Its late
Take care and good luck with whatever path you choose.
Sarah