help! my google adsense account is disabled

Tweet

I recently received an email from GA team, they bring me a bad news.. MY GOOGLE ADSENSE ACCOUNT IS DISABLED today! They say that my GA account are at risk of generating invalid activity. I'm confused, why did it happen? because i never do any cheating on my GA account. So what should i do? moreover in my GA account was still a few dollars that i have not received and now i will not be able to get money from GA.. Hfff.. please help me!