What to do when denied benefits

Here are a couple things you may want to try :

Try the Benefit Eligibility Screening Tool (BEST). It is an online tool you can use to see if you're eligible for benefits :
http://connections.govbenefits.gov/ssa_en.portal

You can also try to appeal the decision which denied you benefits. Here is information about the appeals process :

http://www.ssa.gov/pubs/10041.html