Ok, my friend bought a ticket on BA through STA(Student Travel Agency) for the end of June(LHR-JFK, its a round trip but this is the return leg). He asked both of them if it was possible to move the ticket to the 9th of June (knowing this would cost some fee plus the fair difference). They both told him to call the other company. Hopefully they can work something out. If not, does BA have a standby option for someone in this case, even if this is a student ticket?