I have heard that Whittaker's chocolate sometimes appears in random shops here in Korea, someone I was talking to said they found some in Paris Baguette once for example. I have been here about 19 months now and have never seen it - until now.
I just happened to be wandering around the small grocery shop in the bottom of the Galleria in Ingye-dong today. I don't really shop there as its a bit more expensive and the selection is smaller than the nearby Homeplus so I don't usually bother. I was down there to get some fast food - the American chain 'Popeyes' has a branch in the food court there. I thought I would have a look around while I was there and see what they had, sometimes they have things that you can't get at the bigger supermarket chains.
So this is where I found some Whittaker's chocolate - they have three of the 250g slabs available - Fruit & Nut, Creamy Milk and Almond Gold. The kicker is that unless you are really craving it or are a die hard fan you probably won't want to pay the price. One slab cost 11,000 won, they didn't have a price on them so I didn't find this out until I got to the counter. I thought it would be a nice gift to take in to work after the holiday - I hope they appreciate it.