every agent has different policies on changes made to the reservation.
boy if i could charge $40 per change i would be RICH...i had one guest make 6 different changes in 2 months....she went from single, to double occupancy (her and bf) to single, back to double (i guess they got back together), to single, to double (with a new guy), then double but stay longer with new guy....
my problem with this situation is that she made the changes and just assumed you would pay her change fee...