i just remembered a story that happened to a few friends and I when we were traveling to Israel bout 4 years back.
i found on expedia a flight going from JFK-LHR on virgin atlantic - economy and connecting to Elal on business for $1150
anyway, i bought the ticket with a few others and all went well until we got to LHR and all their names were called out besides mine and one other. the Elal guy told them that since they didnt pay for the tix the correct price so they have to go to economy!
they told him it was online that way, and he said "if you dont move to economy you can stay here (london)!"
so they moved and i was comfortable in business
.
the Question i have is: is that allowed in middle of a flight? obviously its too late now, but do you think they couldve got some compensation for that?