While I agree that the people at the national reservations line don't know anything about this and you should make sure that you talked to in-house reservations and it's a good idea to call back and check, it is possible that $103 is the entertainment rate for the night(s) you asked about. Yes, Hojo offers great $59, $69, $79, and $99 room rates, depending on room type, for many dates throughout the year, but those super-discounted rates are not offered for all dates. If you are trying to book days not offered at the super discount rate, the entertainment discount is simply 15% off, which may well be $103 for whatever night you asked about.
Here is a link to the dates for which the full discount rate is currently offered (subject to change, they update this page often):
http://www.hojoanaheim.com/boards/viewtopic.php?f=13&t=14