Looking at prior posts about on board credit I saw some comments about a $25 credit for booking online. I booked our first cruise for April online with Kids Sail Free discount. There was no mention of OBC. Was that an old promo or will it show up on our statement on the cruise? Also if we book a second cruise while onboard (should I say when we book a second cruise) will the OBC be per stateroom or per person? If per person does that include children or just adults? Thanks!