When it comes to receiving support from social security benefits, the amount of information needed to file a claim can be overwhelming. Due to the time required to complete applications, mistakes are often made in understanding requirements and filling out paperwork. These mistakes can sometimes result in a denied claim, even when the applicant is in severe need. If you or someone you know has had a social security application rejected, an appeal may still be possible. The first step is to find out why the form was denied.