If you think all bubbly booze is champagne, Daniel Macduff can set you straight. 

The Canadian has launched a class-action suit against Sunwing Airlines after he says he expected to be served champagne—which by definition must hail from the Champagne region of France—on his February flight to Cuba but was instead served what he says was a cheaper sparkling wine that originated elsewhere. 

Sunwing tells the BBC that Macduff took its marketing materials too literally: It promised "champagne vacations" and "champagne service," which it says were describing the overall "level of service" one would receive.

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