You can find your congressperson’s official website using the U.S. House of Representatives directory. Look for a menu labeled “Services” or “Constituent Services” and click on the link for help with a federal agency to get instructions on how to submit a request. Some members provide information specific to Social Security issues.
It’s important to note that a congressional representative cannot act as a representative for a disability claimant or overturn an SSA decision. Either way, communication is key. Every little bit helps so trying everything is important. Ultimately, for “real representation” seeking out an experienced SSD Attorney is the best choice though.