When the half price miles sale was on I booked three sets of First tickets to three different destinations (3x2).

At the time as everyone knows the tax's and charges were very high on these tickets but still a good deal. I have not used any of the tickets and have moved these tickets to currently 2010 without problems even though I thought that tickets could not be changed to more than 360 days beyond the date they are issued.

My question is this, I have not been refunded the tax's on these tickets even thought they have dropped and I have read of others getting the extra charges refunded. I also don't want to rock the boat calling to look for the tax's back if I will no longer be able to move the tickets as I have so many other revenue trips booked and want to take advantage of these trips.

Any advice appreciated....