The website says that SSN and credit score are not required. Why are you asking me to add my SSN?

We don’t require SSN for the application process if you don’t have one. You are still eligible to apply for a personal or a new student loan with us. If you have an SSN and a credit history, we add it to your profile for a comprehensive picture of your financial behavior. This helps us lower interests and provide you the best rates you deserve.