Hello User,

We continually review all AdSense accounts according to our Terms and
Conditions and program policies, and we reserve the right to cancel
accounts that are not in compliance with our policies. The Google
AdSense Terms and Conditions and program polices can be viewed at:

https://www.google.com/adsense/localized-terms?hl=en_US
https://www.google.com/adsense/policies?hl=en_US

Our specialists have found that your account is not in compliance with
these program policies. As a result, we have disabled your account.

As part of the disabling of your account, Google has exercised its
right to withhold payment to you. Please understand that this step was
taken in an effort to protect the interests of the AdWords advertisers
and ensure the quality of the AdSense program. The earnings on your
account will be properly returned to the affected advertisers.

Sincerely,

The Google AdSense Team

+ Most of the people who get this email go mad and start swearing and such even though they didn’t do anything that could have gotten them suspended. They start saying:”stupid adsense staff abnned my account although i didnt do anything”,  “they suck” , “adsense sucks” and they  open www.google.com and search for “adsense alternatives” (quite ironic if you got banned from adsense you still use G )

+In most cases they will sign up either for adbrite either for bidvertiser and start bragging, “f**k adsense im using bidvertiser now, its 100000times much cooler and better” and in about one month or so they realize that they don’t got advertisers, only sucky one and they get 0,05$/click.  By this time they will regret that they didn’t write an email back to adsense staff to make clear that they didn’t do anything wrong and they deserve to be unsuspended.

+Lets hope this won’t happen in your case and lets hope you will never get banned from adsense too :D. BUT if you get banned and you are 100% sure that you didn’t do anything wrong don’t be afraid to email them back to clear the situation. In the email don’t swear, write the email in a chilled and calm attitude, explain the situation, tell them everything about your sites and ad placements, explain that there’s no way that you broke the adsense TOS and most importantly be honest. Honesty is very respected! You will get an email back with an answer where everything will be explained and you have a very good chance(if you we’re honest in the email and you didn’t brake the TOS)