I passed this complaint on to Travelex and Christina Brown, the regional marketing manager for Asia Pacific, responded that there were a lot of factors that affected the setting of exchange rates, such as:
"We operate at the airport at least 23 hours a day, 365 days a year, offering the customer the option of buying their cash at 4am, which is at a higher operating cost than any bank.
"We hold 40-plus currencies in stock which are available immediately. None of our competitors offer the range of currencies that we do. There is a cost of holding this stock that we spread across all currencies. Minor currencies are more expensive to source and this is why banks do not stock them.
"We offer customers an alternative of going online to order and collect from the airport at no commission and at preferable rates."
That said, as a gesture of goodwill Travelex offered Thorley a payment which roughly made up the difference between its airport rate and the rate from the ATMs in Samoa.
"We're happy with that, of course," Thorley said, "but the experience has made me gun-shy about converting currency at the airport. It's certainly a good backstop to have at least some on hand on landing, but you pay a $10 fee for even small amounts."
True. And worth remembering.