UK Residents: Availability of Series 4 Planets and Hoth board game?

Hi Guys/Gals,

I'm not sure if this is the right sub-forum to post this but my wife is going to be in London next week on business and I was just wondering if the three Series 4 Planet sets and the Hoth board game set can still be found at local retail.   (Harrod's?   Lego brand stores?  etc.)

I noticed all those items are listed as sold out on the UK LEGO Shop at Home page, but I'm just hoping maybe there's a chance she can pick any of these up for me while there.   (A single copy of each for my own collection.   We never got these in north america.)

Please let me know if you think these can be found, and where best to look.   I'm not exactly where in London she'll be, other than "down town" (I know that's vague given the size of the city).  

Thanks.