You can top up your travel money card if you need more money while you're on your trip. Depending on your specific travel money card, you can reload your card online, using BPAY, through your bank's app or via your bank's branch. Look into the card you are topping up because some methods do incur fees e.g. the Qantas Pay Card has an instant reload fee of 0.5% while its BPAY and bank transfers are free.