Terrible terrible airline! We booked seats hand picked six months before our flight in order to sit next to friends with severe anxiety of flying and just found out accidentally (by going on line to check to see how full the plane was) that our seats had been moved. No email, phone call, etc. given... no notice at all. First reason they gave- "There was a glitch in the system when you booked." Second person said- "The aircraft had changed." Outright lie, it is still airbus 330. Third person said- "There was a change in the time of the flight by four minutes, which changed the seating." Blatant lies. Then they claim- "We can't move you back to your origional seats, because we can't just move people." Well, you moved our friends as well as us, didn't you!? Empty apology given and we replied with "We will NEVER EVER EVER FLY DELTA again." They are shifty, and dishonest. What else will they be dishonest about. Can't trust them. We have never had our seats moved, ever in the 20+years we've been flying... and without even the decency of some kind of notice to boot! Beware! What you book and pay for is not guaranteed with Delta, empty apology and no compensation to right the wrong is what you'll get instead! I would give it ZERO stars if I had the option to!