This isn't so much a seat change issue, but I flew IST-LHR recently with BA on their 767. I did not reserve anything in advance, but when I checked in using their mobile app it forced me to sit in 16A. I could not change this seat for love nor money no matter how many times I opened the seat map and selected an empty seat!
I wanted a window anyway, just a bit further back to avoid the wing as I like a good view. I gave up in the end and grudgingly took 16A, which I tried to change at the bag drop desk, but I was told there were no windows left (this was true, the flight was 100% full from what I saw). I was very unimpressed to see that due to the location of 16A and that flights config, the curtain separating Economy and Club Europe was drawn right in front of row 15, thus meaning I could not see any of the overhead TV Screens for the 4.5 hour flight. The CC were friendly but were unable to move the curtain. Once I got home a quick complaint email was sent addressing both the app failure and the curtain issue and they credited me with a rather generous amount of avois, so much so I could easily book another LHR-IST round trip without even using any of my current avios.
Last edited by edi_local; 15th October 2012 at 20:44.