This is why I wrote the article New AdSense Publishers Aren't Reading The TOS. You're right. Took two seconds looking at the site to figure out what the problem was. This is why I always suggest to understand the TOS before placing ads on your site. It does seem like there was a distribution of MP3s on the site. As for invalid clicks possibly being the issue, we don't know since OP says he hasn't received an e-mail from the AdSense team. Another one bites the dust...
I am banned but why these sites don't banned ?http://point4fun.com/ see placement and alots of adds..
Check your inbox/ spam folder, if you dont see their email try changing browser and login. If it still doesnt help shoot a pm to adsense support.
No ads on your site running now. Email them and ask for clarification: adsense-support [at] google.com