Problem in activating adsense account

I have my wordpress website. I want to start google adsense programme my website. For this i made adsense a/c and created first ad unit and implemented the ad unit code into my web page. it has almost 15-20 days after implemented the code but my account is still under review. Message is

Your application for domain name is under review. You’ll only see blank ads until your account has been fully approved. Learn more. Or resubmit using a different website.
what to do now pls help me.