Originally Posted by
danielbk
I would suggest calling BA and asking them to cancel the segment, I think if you pro-actively cancel it everyone's happy (in this case, not when booked through an agency)
+1 - This is completely OT to this thread. OP has not booked a hidden city ticket. Rather, he has been involuntarily rerouted. His ticketing carrier which I presume to be BA, will likely willingly drop the final segment as part of that reroute in light of the schedule changes.