Bookwalker gives you the codes in your account details, NOT the magazine. I bought both digital and later physical because I saw it at the store, so I can tell you with certainty physical is the only one with the codes actually printed in the Magazine.
First, click マイページ (My Page) on the top right, then click 購入特典 (Purchase Bonuses). That issue of Famitsu gives you four codes, it should be fairly obvious which code it is.
This may be bad news for you, but it said my code would expire on 2016/12/07, the day of the last maintenance. I'm pretty sure you can't redeem the Famitsu codes anymore, as I said before.
Edit- Yeah I think you shot yourself in the foot with this, the page for the Famitsu issue mentions the code deadline, in English too.
Connect With Us