Re the duplicate booking.....I'm curious about mmchow's experience as that has never happened for me, even days later still pops up the duplicate booking message. I have found a work around which does work for me, that is if the booked flight is a return, book it again as two singles. If it's two singles, book it as a return. It allows that and because the funds are returned to travel bank, there are no addition CC fees to pay and you can then still add a discount code. In fact I love the travel bank refund as it's a great way to "deposit" a truck load of money with just one CC fee and then use it to buy any multitude of flights in any configuration (one way/return/multi) for any number of pax! I've not yet tried "depositing" with a single domestic CC fee and then redeeming for multiple internationals, but I can't see why it won't work!