Standard Operating Procedure for LP/GP!!
It seems someone have said they will expedite tickets without charge as they want to put this behind them (see other thread). And why not do it with the expedite fee, which was normal process and helped those with fears of LP/GP problems - best to have ticket in hand??
Who did you speak with? Did you re-try?
And who knows if seats will be available when you try to change with TACA?
LP/GP continues to be the KING of confusion and inefficient processing (anyone else have handwritten ticket?).