A.R.S. § 44-7804

In an uncontested court action in this state a creditor may establish the amount of the debt that is owed on a credit card account through a copy of the issuer's final billing statement or by the electronic record pursuant to section 44-7007 that is maintained by the issuer and that represents the amount owed. In contested actions the court shall weigh the evidence of the parties as required by law.