I booked two cabins for our family, a balcony and an interior. Because the price dropped we got on board credit. The balcony cabin with my husband and youngest child in it got nearly $700 in on board credit. The interior cabin with myself and two other children got $250. Can the credit be combined? The $250 will cover my drinks but my husband won't be able use up $700 on his own - it would be much more useful if we could combine the on board credit.