I booked a dummy date in July of last year, then went and changed the date for this April. I was expecting to see on the price breakdown a $200 credit (which I thought you got if you booked on board, $100 for a smaller cruise and $200 for a week). I can't see the on board credit listed anywhere. Should I be worried? Should I call? I was going to use the OBC for a week for Mom and I in the Rainforest Room (special birthday treat).