I suspect if booked through travel agent you will not be able to view. Anyway I looked at my online booking and there is no “ view credits option. Stock is at a one year low so you can get 100 shares for about $1300.00. Even If it goes down 20% you would be about even with $250 onboard credit. I made a lot of money buying carnival stock but I would be surprised if rcl does that in the short term. Got in at about $13.20. Something to watch, anyway