I found this on the
DCL web site while planning my Dream cruise next Sept.
Free sodas are available at the Beverage Station on Deck 9 of the Disney Magic and the Disney Wonder. There are 2 Beverage Stations on Deck 11 of the Disney Dream. However, you must pay for alcoholic beverages and sodas at the bars and lounges onboard.
It was under the FAQ - Onboard Entertainment
Why under Onboard Entertainment, not sure .
Big John