They could have a placeholder that they used when they booked their current cruise. I know that if you don't use a TA and get a placeholder, you have 30 days to move it to a TA, if not, you have to book your cruise through DCL to use the placeholder.
Psy
Does placeholder mean reservation/deposit? I think I am missing something. I guess if you didn't know you could transfer to Costco and get the additional benefits but if you plan to transfer, why go through DCL (or any TA) at all?
How would that be refunded? Another Giftcard?