This adwords account created ads about FarmVille Tools in 2010 Nov ... and I have stopped it after few days. It means I have not used the adwords since 2011 Jan .... Why google banned it in 2012 Feb ?
I had a ban placed on my account last week. After emailing adwords I discovered it was because there was a typo in my ad which was pointing to a godaddy landing page. (which i didn't own) After correcting the issue and explaining myself to adwords, the ban was lifted. All you can really do is email ad words, hopefully they can give you the reason.
Are you sure you still don't have any ads running? You may have unintentionally violated some of their rules in your old campaign. It's best to submit an inquiry to Google directly -- hopefully you'll get a clear answer.
This just happened to me as well. I think in my case its because I was using them for affiliate links
Don't waste time asking why they banned you. Once banned you won't be able to restore your account. Just use other quality PPC advertising venues.
ya .. quality of forum is better for saving ur account.. if u have wasted post.. so there is a possibility of banned ur account...