Can pre-purchased OBC be used by anyone in stateroom?

[Mistizoom]

I just purchased $500 in OBC last night to take advantage of the Amex offer but I am wondering if I made a mistake in putting all $500 in my name. I want the OBC to be usable by anyone in my cabin (me, my husband and teenage son). Will the OBC be applied to any charges by anyone in the cabin, or charges made only with my room key?

Edited March 1, 2016 by Mistizoom

[KeithJenner]

Unless you specifically ask for separate accounts to be set up then all your spend is pooled in one account and the ONC is shared.

[Mistizoom]

Great, thanks. That's what I was hoping. We will keep the account together and have any additional charges put on one credit card.

Edited March 1, 2016 by Mistizoom