Google AdSense use to send a PIN code to all publishers when they arrive at an earning over 10$. Google mailed this pin code to them via postal mail in order to confirm the address detail of the publisher. But, it is tricky for the publisher who lives in Asian country such as India, Nepal, Cambodia, Sri Lanka, China, Vietnam, Pakistan etc. to verify their account. They can only request PIN from Google max of three times, if they didn’t get the PIN and confirm the PIN in 6 moths Google will terminate their account.
Publishers have to obtain the PIN and enter it to legalize the PIN confirmation. It takes about 3 to 4 weeks for the mail to reach the publisher. In the case, publishers don’t receive the PIN code in 3 or 4 weeks, they likely demand it again. Again, if they still didn’t obtain the PIN code for the second time, they can request it for the third time but it is the last time for them. What will you do if you don’t get the PIN code for the last time?
There is other method to confirm your account in the case you don’t get the PIN code after you asked for it 3 times.
Initialy you have to log into your AdSense account and click AdSense account page then you will see link as if you have not get your AdSense PIN yet.
Next, you will be gone to a page where you have to enter your AdSense publisher ID. For your pub-ID it is at the top right corner of your AdSense account. By entering your pub-ID and offer your appeal. Once you already submit your request, Google team will contact you by email within 2 days. They will turn to you to ask for your NIC or bank verification by scanned attachment via email.
If you provide them true information, that they can verify, you will receive an email from Google team within 2-3 days with subject “your AdSense Account has been legalize”.
Now your AdSense account has been legitimately legalized by Google, and you can start earning without entering AdSense PIN code.