Can I change my email address to a new one? Updated April 05, 2018 08:49 Yes - give Xinja a call on 1800 946527 (or +61 2 8598 8525 if overseas) and we'll arrange it for you. Related articles Is Xinja going to build more features in the app? Which ATMs can I use? How do I reverse my top up? Why the name 'Xinja'? What foreign exchange rate does Xinja use?