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    Authorizing a Payment
    - Send the service request to.https://nabgateway-api.nab.com.au/pts/v2/payments
 - Include the required fields in the request.
 - Include optional fields in the request as needed.
 - Check the response message to make sure that the request was successful. A 200-level HTTP response code indicates success. For information about response codes, see Transaction Response Codes.