This your free personal identifiers update letter. Send to the credit bureaus to update and remove incorrect and/or outdated information. Removing old, outdated and/or incorrect information is the first steps to repairing your credit. You send these letters by fax or certified mail. This letter sent to the four national traditional consumer reporting agencies: Experian, Equifax, TransUnion, and Innovis. By doing this you could raise your credit score 50 points or more.