I need to add a caution here. If your ticket has an issue date of 19 January 2004 or later you may run into a problem with the reissue. They may want to charge you the new fare, claiming that EMECO issued the ticket in error. This assumes that the new fares went into affect for all OW carriers on 19 January. If the issue date is before 19 January then you will definitely not be liable for the new fare.