Originally Posted by
arlflyer
Is this true now that US and AA are officially operating together under oneworld? Do not the oneworld rules regarding onward protection under separate bookings apply?
There is no such published policy
AA has , on its Travel Agent's site, indicated that it has a policy to protect on separate bookings
It sounds that the OP has been in contact with US and given that US is not prepared to enter into any further discussion, seems that there is not much left for OP to do other than initiate action through MCOL if due any recompense - whether entitled to anything will depend on whether it was a through booking and whether actually incurred any expenses