About 2-3 years ago I attempted to trade in my car at a dealer. The financial manager told me my social security number was invalid. He entered it multiple times. I have since tried applying for other credit related loans and they all result in an invalid entry. When contacting Equifax , they send a report using my SSN, but my name was not even associated with my number. It also said invalid. I have contacted an attorney, who is clueless. I have contacted the social security administration which have checked all of my paperwork since birth that is normal. So, I 'm needing to know why this has happened. I need to be able to build and use my credit.