My daughter and friends need to cancel a cruise due to a positive Covid test 5 days before sailing- how does the FCC work? She was told it needed to be used immediately and they had to rebook now at time of cancellation- has anyone else encountered this? If that is the case, is it possible to rebook any given cruise in the future and then move to money to a cruise they really want (right now they can’t commit because of uncertain schedules beyond the immediate future)