I have some sites on which some my users put some content which isnt good for adsense and after that G. adsense ban that my sites from adsense. Do I can on some way to back again that my sites in adsense? I delete all invalid content from site.
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...]
There's not much we can do here to diagnose why you were banned. If you read the above posts you should get a good idea of how to proceed in getting reinstated if you feel you did not break any rules. And make sure you know the rules. ;)