Originally Posted by jhb019
I'm also in the UK and I brought mine of ebay but now it is broken and the seller doesn't care. I would be very careful as the phone will obviously be an import so the warranty will not work in the UK. LG UK will not fix your phone, even if you pay for it. Many online shops, such as simply electronics, may take a long time to ship to you as they may have to get the device delivered from hong kong etc. Also, most of these online shops have none existent customer services and they won't reply if you have a problem. From looking at google shopping, there doesn't seem to be anywhere in the UK who will help you if your phone breaks. However, if you do buy from shops such as simply electronics and value basket, you should eventually receive the product.
Why don't you get the LG G2? It is only £320 on Amazon UK.
All this said, I think swappa.com may be the best place to buy a US model in the UK (if one ever comes up). Swappa is an XDA offshoot and they have a very good system for matching buyers with sellers at fair prices. I just sold a phone there for a little less than I paid for it to someone who didn't seem to know much about what he was buying but it all worked out fine. They do not charge sellers. Buyers pay a flat $10USD. Another advantage is the built in protections of PayPal. I would not hesitate to buy from Swappa, although their prices tend to be somewhat higher than ebay's due to the buyer fee and shipping included in the asking price.
A few (not most) US sellers will ship internationally.
Here's one: LG Optimus G Pro (Unlocked) For Sale - JCP297 - $400 > Swappa - http://is.gd/tLP8aL
F240s,said to be mint. With international shipping will probably cost more. Keep in mind that a locked AT&T e980 is now $370 direct from the carrier. Of course given UK prices this might still be less expensive than ordering locally.