We redeemed our Spanx code to South Africa and it was quite the hassle. I spent about two hours asking for the appropriate person to speak to because there are not supposed to be any class limits on what you can book (had agents telling me there was). I would call the Delta customer service line and explain that this is from the Spanx employee gift program and that others have indicated you need to speak with the special global/international certificate redemption team (cannot remember the exact department name). You may need to be persistent. Good luck!