"... Please try again later." I've been trying to exchange my certificates (out-of-business restaurants) since October 14 (5 weeks), and this is the response I've received every time. No response to my emails. I'm glad all I lost were the almost-useless airline miles I swapped for these completely useless certificates. Don't waste real money on this scam... And here's an update: As of 4/12/16, they still "could not exchange at this time..." You're all shocked, right?