i got my google adsense a PIN code (revenue with relevant ads)

(dated on 19th Feb 2009) i was got a postcards from google for verification threshold.

Google AdSense PIN Process

What is a PIN?

In order to become eligible to receive payments for your AdSense account, all publishers are required to enter a Personal Identification Number (PIN). PINs are printed on white 4.5 x 6 inch (11.4 x 15.2 cm) postcards and sent via standard mail. To view the outside of the PIN mailer, please see our entry on What does the PIN mailer look like?

Why do I need a PIN?

PINs are necessary to verify the accuracy of your contact information and to help ensure that you can receive your payments.

When should I expect to receive a PIN?

We'll print and send your PIN via standard mail several days after your account balance reaches the verification threshold for the first time. PINs typically arrive within 2-4 weeks, but may take longer depending on your location.

How long do I have to enter a PIN?

You'll have 6 months from the initial issue date to enter your PIN. If you have not entered a PIN within 4 months, we will replace the paid advertisements on your site with unpaid Public Service Ads. If you still have not entered your PIN within 6 months, your account will be disabled and your unpaid earnings will be refunded to the appropriate advertisers.

What if I do not receive my PIN?

If you do not receive your first PIN, you can request 2 replacement PINs. For instructions on requesting a new PIN, visit How can I request a new PIN?.

If you have requested your maximum of 3 PINs and have not received any of them within 90 days, then sign in to your account. You'll see a notice on the Reports Overview page with further instructions.