Hello everyone,

I just checked my initeraries from Delta today, and I noticed that there's a change in my initeraries . Bought two rts tickets when the mistake fares were still alive to MAD from PHX . The first trip is fine , but the second trip (08/27-08/30):

PHX-JFK-MAD-ATL-SLC-PHX (original flights) has been changed to PHX-JFK-MAD-ATL-PHX! Resulting in one less segment and I will lose approximately 400 miles.

So what should/can I do?
-Should I call back and request different flights that almost identical to my original flights? (And I shouldn't get charge because they change the schedule on me right?)

On the side questions:
-Since they changed the schedules on me, would that messed up my seat assignments? (I can still see my seat assignments, seat numbers on top of "Add/Change" on my "Seat Assignments," but when I actually clicked on the that, and look at the seat map, it said my seats are unassigned )

P.S. There were no communications from Delta (booked on delta.com) regardless about this flights changed, I just found out today.

Any inputs/ comments are greatly appreciated@:-).

Thank you and have a great day everyone.