Delta is lousy at admitting when they make mistakes or their website has problems. Even as a PLATINUM Elite customer one has to suffer. This is not the first time I have come up against this. I am convinced they saved the wrong date for my return trip on a reservation but cannot prove this. The web site supposedly give the ability to change the date. But with 25 to 30 tries in the last 24 hours I get the same message -- try again later. Yet Delta refuses to acknowledge their has been a problem with the web site either when I made the original reservation or now. Shame on Delta!