Originally Posted by
KARFA
I suspect you saw the AA agents who were asking everyone if they were travelling on AA and you showed them your bp? And they then told you that you were too late? On that point for future reference note that there is absolutely no requirement to show a bp before boarding an airside transfer bus, you can just join the queue for your bus without speaking to anyone and go to T3 as cws has noted.
Yes, it was an AA agent that redirected me back to the flight connections center from the bus queue. In any case, I've responded back to BA requesting they take a look at the EC261 request again (emphasizing the number of things that were well within their control, even if they don't want to take responsibility for "stand allocation"). I'll post an update once I receive their next response.
-FlyerBeek