Sure you can generally use your phone credit card (assuming you’re referring to a wallet or digital wallet, like Apple Pay, Samsung Pay or Google Pay) in Australia. Just make sure your mobile wallet is set up for payments and compatible with payment systems. However it’s always an idea to check with your bank or credit card issuer to confirm if your mobile wallet is supported in Australia and if there are any fees for international transactions. It’s also advisable to have a payment option like a credit card, in case your phone or mobile wallet doesn’t work properly or isn’t accepted by certain merchants.