I received a Google Adsense Personal Identification Number (PIN) in the mail. I am being asked to enter the PIN on the Account Information page, but nowhere on this page is it asking for my PIN?
Sign in your Adsense account and on the Adsense homepage there you can find your pin verification,click verify and on your account information page,enter the pin exactly as it appears in your email and click submit.Hope it will works.
You need to login to your account and search for the managements and setting, see verification and enter the code
Not sure if you've read this, but I'll link it here just in case: https://support.google.com/adsense/answer/7497307?hl=en-GB
I remember reading that when I received the PIN in the mail, but there is nothing on the homepage. I must be going blind.