Did you know that our 13 telephone banking service is available 24 hours a day, 7 days a week? It's great for those occasions when you can't get to. Commonwealth Bank FAQs, phone and email contact information and information on how to give feedback. Log on to NetBank and other · Business Banking · International Money Transfer. Call 13 24/7 and select Option 1 then 0 to set up a Telephone Banking password. Have your account details or card number ready.