I 've been challenging the incorrect and incomplete items on my credit report withExperian for quite some time with minimum success. I 've sent out countless letters to them certified return receipt to only get responses like " New Information Below '' or " Suspicious Activity ''. As per section 609 ( c ) ( 2 ) ( E ) and 611 ( a ) ( 1 ) ( A ) all data furnishers are required to produce the original signed documentation when challenged to solidify the accuracy and completeness of the alleged debt. Experian has failed to do so on many occasions.