U.S. District Judge Kathleen M. Williams in the Southern District of Florida certified a $5 million class action lawsuit Tuesday against defunct Dutch Caribbean airline InselAir Aruba NV, accused of forcing passengers to pay surprise $80 fees before boarding flights at Miami International Airport.

The order advances allegations from lead plaintiff Hector G. Saade that the now-bankrupt airline mandated “exit tax” without mentioning them on customer contracts. Saade paid the fees on flights to Venezuela and Aruba, according to his May 2017 complaint, after being told he wouldn’t be allowed to board if he didn’t.