Hello, They are closed one day each month but October closing day is not announced yet. You can check from their web site. When they work, their working hours are from 10:30 until 20:00.

Hello, I guess at least 2 hours. You need to climb 13 floors with escalator, tour around each floor and so on. You can find a list of floors, so you can directly go up the one as per your interest. If you are interested in local food, at least one hour you can spend in basement floor in food court. By the way, you can find really tasty food there and attractive sweets. Have fun.

Hi There, I’m not sure but would recommend looking at their website, or indeed the brand you’re looking for website.

As far as I know, it could be collected on the spot of purchase at department store, but need to have tax return invoice together with the camera showing to excise duty before leaving airport. There are quite lots of helpers assisting tourists to register tax return at designated counter.

Around 10 mins walk.