Are HAL gift cards sold in the onboard shops?

[NCTribeFan]

I have a bit of OBC for my upcoming Rotterdam TA.  Since I have HIA, and the NR OBC can't be used in the casino, spending it may be a problem (nice to have, but still, don't want it to go to waste).

 

On Carnival, they sell their gift cards in the candy store on board.  On our recent B2B2B this past fall, friends who had leftover OBC on each leg went to the candy store and purchased gift cards.  Since they have multiple upcoming cruises, those GCs can be used to either pay the balance due or used once onboard.

 

Does HAL sell their GCs anywhere on the ship?

 

If not, I'll use some in the spa and some extra specialty dining.  I'll be onboard for the next 2x5 night sailings.  Those 2 were casino offers where I have drinks in the casino, but no HIA since they're short cruises.  I suppose I could purchase a wine package at the end of the TA and take the bottles to the cabin.  I'm assuming if I then take the bottles to dinner that there will not be a corkage fee, right?