If you are using a production environment account, you should contact Authorize.Net merchant support at 877-447-3938 between the hours of 6am - 6pm (Mountain Time) Monday - Friday to provide them with your current and correct merchant account configuration. If you do not have your current merchant account configuration on hand, please contact your merchant account provider to obtain it prior to contacting Authorize.Net merchant support.
Thank you,
Elaine
