Once I paid $1243.43 (IIRC) at a fast food place in Vegas. It was
lunch for two.
20 minutes later, I got a full refund and an apology... and the lunch
ended up to be free.
The cashier entered the last two digits twice by mistake for the credit card
transaction.. and then freaked out
The manager spent 20 minutes on the phone to get the transaction reversed.
did you get to keep the miles?