From one of the many Navigators on my desk:
<b>Guest Services</b>
For your rconvenience, Guest Servies Desk is available 24 hours a day for a copy of your shipboard account, cash transactions, <b>cashing of traveler's checks</b> and the exchange of select foreign currencies into U.S. dollars. If you have not already done so, you may register your credit card to settle your account