Originally Posted by
ajm1972
But major factor is we were family of 6 and were at the A380 gate with still 200 people to board, we were denied boarding as they didn't think we would make the connection and rebooked us on following day, and to top it off the 2 pax flying behind from DUB were allowed to travel and arrived at the gate 10 mins after us.
OK, just can I confirm this, since I've never heard of this happening at T5 before: you were late into LHR, you nevertheless made it through security (via landside or Flight Connections airside? Not that this is relevant to your question), go to presumably a T5C gate, you weren't the first to board, you weren't the last, and at the gate they offloaded you? If this scenario is correct then you have a clear and pretty much unarguable case for Involuntary Denied Boarding, with CJEU precedents to back you. If you were not allowed airside into T5 then it would be another story.