If you’re under 25, you’re in for an unpleasant surprise when you check into the Oasis Cancun, a pyramid-like, all-inclusive resort on Mexico’s Yucatan Peninsula: a mandatory “under 25″ fee of $54. And they don’t take “no” for an answer. When Ryan Plaxsun, 24, recently checked into the hotel, he was told to pony up the cash — or leave.

Elliott is consumer advocate
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