Beware! We purchased Opal Cards on the internet prior to leaving the USA for a trip to Sydney. The Opal Card is like a debit card used to purchase all types of transportation, i.e. buses, trains, ferries, etc. Just hop on hop off and scan the card. The merchant name that showed up on our credit card when they were purchased was "Transport for New South Wales". While the Opal card worked great in Sydney, the above named company has screwed us for the remaining balance on our cards. We asked for a refund when we returned to the States. They say we can not have a refund of unused balance, unless we have an Australian bank account. Really? They had no problem charging our credit card when we loaded the Opal Cards; and now won't give us a refund! Scam! Scam! So, do the next best thing, call your credit card company and request a charge back! We did!