MoPub Policy Team is reviewing your account. To help speed up this process please consider a few points:
Did you input your app iTunes URL, Google package name or mobile web address?
Have you published your app?
Have your read our Program Policy (http://www.mopub.com/legal/program/) and Terms of Service (http://www.mopub.com/legal/tos/) ?
Contact Policy@mopub.com for policy related access questions and include your MoPub login email.