For those going to the game, the map on the club site doesn't give a clear indication of how to get to area K.
Use this instaed.
https://www.wizzymaps.com/johancruijff/arena/basis.php
Basically, as you leave the metro and station if you get off at Bijlmer Arena then as you approach the stadium...
I know Hamilton Junior is on the 8.16am Eurostar outta London on the Weds with a few mates and a box of ciders.
They're a very nice bunch, but I doubt he'll share his Magners with you.