Back in December, I purchased 4 round trip non stop tickets from Atlanta to San Juan for July 21st through 28th for my family's summer vacation. Over the last 2 months, they've changed my itinerary at least 3 times. The first change was to make our departure date the 20th, with an overnight layover in Orlando. The most recent change was to make our departure time on the return leg 3:40 AM out of San Juan with a plane change in Orlando. That means we'd have to be at the airport around midnight to return our rent a car. I haven't yet accepted this change and they've sent me 3 emails asking me to do so. My question is, am I under any obligation to accept these changes? If I decide not to accept it on the grounds of that's not what I bought, would I be entitle to a cash refund? Chances are we'll stick with it but I'm just NOT looking forward to that ridiculous departure time, but I just wanted to know what my options are. Thanks.