609 Dispute Letter Which credit bureau are you trying to contact? * TransUnion Experian Equifax Please select the address associated with the credit bureau you would like to contact.* TransUnion Consumer Solutions, P.O. Box 2000, Chester, PA 19016 Experian, P.O. Box 4500, Allen, TX 75013 Equifax Information Services, LLC, P.O. Box 740256, Atlanta, GA 30374 Please enter your full name.* What is your credit report number?* Please list any documentation or proof of identity you would like to send with this 609 dispute letter (e.g., Social Security card, birth certificate, driver’s license, rental agreement, or cell phone bill).* Please enter today’s date.* Your Email Address*