When I called Airtran with issues about making our initial online seating assignments, the rep said, "Oh, you could just call the 800 number and we'd do it for you."
So, my friends purposely didn't go back to the villa to choose seats f or their return flight and instead called the 800 number from the parks. They were told, "Oh, no...only certain people can make seat assignments on the phone." So, they had to hoof it back to the villa and do it online.
That is one thing we discovered with Airtran....we constantly got different answers! "Oh, you can't reprint boarding passes later." Yes, you can. "Oh, gatechecked strollers ARE luggage." "Oh, gatechecked strollers may be counted against luggage limits...depends on the airport." "No, gatechecked strollers aren't luggage."
I took to calling repeatedly, and taking names!