"You selected USD right?"
"Yes sir"
I ticked the box, signed and photoed the hell out of it and signed. I was further worried when the cashier gave me a cardholder receipt with two unticked boxes.
"Are you sure this is USD?"
"Yes sir, if you want HKD, I have to press a button after."
<snip>
I stormed back to the desk and asked to void. She said she will fix it in the "back office" a bit later. When I said there is no such thing she went to the back office and grabbed her supervisor. Then she sent someone to stop the boat that's meant to take us away.
The supervisor voided the slip, which showed Global Payments indeed had went ahead and charged me in HKD.
He proceeded to charge me a second time. I adopted the
Global Payment stomach over counter posture again. I saw the following:
1. Supervisor keys in amount
2. Cardholder receipt printed
3. Card terminal prompts "Print next receipt?" --> Supervisor presses no (presumably his junior pressed yes here)
4. USD and HKD choices offered. He selects USD.
He also prints off the "Merchant Courtesy Copy", which shows USD only.
<snip>
By default, the terminal will DCC unless you answer the illogical answer ("No") to a deceptively worded question ("Print next receipt?").