@SouthwestAir 
U changed my flight, I lose boarding position A to C &amp; wouldn't let me $ for priority boarding during check in! #poorservice
@362896 Mike, in these situations, we're only able to issue the next available boarding position. Did you discuss Upgraded Boarding @ the Gate? ^CT
@SouthwestAir I did but was told they just sold the last position right before me. I ask to purchase it when I was checking my bag and was told I couldn't
@362896 Sorry for the trouble, Mike. Upgraded Boarding is popular &amp; sells out fast. Fingers crossed for next time; see you onboard! ^SH
@SouthwestAir Why are we not allowed to upgrade our positron at the time of the change during luggage check in?
@362896 Because we allow Passengers to easily make changes to reservations, we don't have an accurate count until closer to boarding time. (1/2) ^EC @362896 As such, our Gate Agents have the ability to offer Upgraded Boarding when available within one hour of departure. (2/2) ^EC
@SouthwestAir That makes sense. Wish your check in agent would have explained it that way.
@362896 We're so sorry for your continued frustration. We hope you will give us another chance. ^SJ