Questions:

1. If I am on a connecting flight and request the 12 hour change from my original departure flight, does this also apply to my 2nd segment at the same time that the 1st segment is confirmed? The second segment may then be more than 12 hours from the time for the original second segment? If you are able to confirm the 1st segment but not the second then it does not make sense to pay the $50/25, since you may have to wait at the connecting city for the original second flight?

2. What I read is that you can request the change at 24 hours before original departure time, but it will not be confirmed until 12 hours before the new flight time - true? Then if confirmed you would need to go back online 12 hours before new flight and select your seat for the new flight?