I know,just call them but I have been on the phone with them five times today changing flights and I'm tired of being on hold. Now I have travel credits. Travel credits from rebooking have an expiration date. Does all travel have to be completed by the expiration date, or just the departure date? I don't have enough credits for a free round trip, but as long as I book the outbound flight using the credits and before they expire, I should be good, right?