Hopefully martinibuster will come along and post links to the "What to do if..." posts, because off hand I don't know where they're stored.

Many of us have AdSense advisers that we can call any time but then that service is only available to a pool of large publishers.

Quote from martinibuster:

Here are a couple threads that may be helpful:

Before anything, it's a good idea to read Google's AdSense Policies and their Terms and Conditions.

I've been Reinstated - Adsense has let me Back in
A member recounts their experience at being removed from the AdSense program, but subesequently reinstated when she proved that she was not responsible for false clicks.
[webmasterworld.com...]

What to Do When You are Kicked Out of Adsense
A long step-by-action-step tutorial on your recourse when booted from AdSense
[webmasterworld.com...]

Good luck.

THXs
Jim