Address verification is necessary for google adsense account. Pin number is sent in a postal letter to the address ( present in adsense account ) after earning has reached ten dollar. Pin number can be requested for three times. As, I live in Nepal where postal service is poor, I didn’t receive neither of those pin numbers. Later, I verified my address through bank statement ( shown below).
Things that should be looked in bank statement before submission .
1. Name present in bank statement should match with adsense account.
2. Address should be same as provided in adsense account. If it is different, change the address in adsense account before submission of bank statement.