This is the email I got today:
This message was sent from a notification-only email address that does not accept incoming email. Please do not reply to this message.
After reviewing our records, we've determined that your AdSense account poses a risk of generating invalid activity. Because we have a responsibility to protect our AdWords advertisers from inflated costs due to invalid activity, we've found it necessary to disable your AdSense account. Your outstanding balance and Google's share of the revenue will both be fully refunded to the affected advertisers.
Please understand that we need to take such steps to maintain the effectiveness of Google's advertising system, particularly the advertiser-publisher relationship. We understand the inconvenience that this may cause you, and we thank you in advance for your understanding and cooperation.
If you have any questions or concerns about the actions we've taken, how you can appeal this decision or invalid activity in general, you can find more information by visiting http://www.google.com/adsense/support/bin/answer.py?answer=57153.
The Google AdSense Team
Well, as it seems Google for an unknow reason, at least for me, has disabled my adsense account, which I had with Google for about 8 years and I made a little as $150.00 which I was going to receive next month and about $100.00 were made over the last 5 years. I was laughing with my wife about that money that was hunging on my Google Adsense account for years and was finally coming to me.
Since when I started updating my website I've got more pageviews and clicks, so my earnings increased a bit, would that increase make Google suspicious about my pageviews and clicks? The thing is that they don't tell anything to you about what has gone wrong. Google just disable your account and send you an email saying so, well at least they send you an email. However, what exactly has happened Google doesn't say.
Google said, as per email above, that they are going to refund the affected advertisers, but I'm wondering some of my earnings are from years ago, yep, there were years I made $15.00 or even $5.00 for the whole year. Are they going to refund these "affected advertisers"?
Just to make sure that I haven't done anything wrong, I went through the Google Adsense FAQ and Terms & Conditions and don't find myself breaking any rules. I haven't clicked on the ads on my site or asked friends to do so, etc.
There is at least a last hope which is try the appeal, but how can I appeal to something that I don't know what went wrong?