Step 2: Tap "Auto Top-up"
Step 3: Hold your EZ-Link / Concession card to your phone and tap "Start Scanning"
Step 4: Select the ATU amount
You may change your payment method if you want to, before proceeding.
Step 5: An authorisation amount of $0.50 will be held on your bank card, tap "OK" to proceed
And you're done!