If you haven’t received your PIN yet, contact Google and request to send you the PIN again. Google advises that you contact them if you haven’t received the PIN in 3 weeks — and you certainly exceeded that already
From the Adsense Help Center, here’s the instructions on how to request for a new PIN
May 31st, 2007 at 1:10 pm
Typically around 2 weeks
If you haven’t received your PIN yet, contact Google and request to send you the PIN again. Google advises that you contact them if you haven’t received the PIN in 3 weeks — and you certainly exceeded that already
From the Adsense Help Center, here’s the instructions on how to request for a new PIN