Ariz. Rev. Stat. § 44-1694
B. Within thirty days after receiving a notice of inaccuracy, a consumer reporting agency shall deny or admit the inaccuracy to the consumer in writing. If the consumer reporting agency denies the inaccuracy, the consumer reporting agency shall include the following information with the written results of the reinvestigation:
D. A consumer may provide a statement to the consumer reporting agency and, unless there are reasonable grounds to believe that it is frivolous or irrelevant, the consumer reporting agency shall include the statement in the consumer's file if either of the following applies: