What is the MetroCard discount? When you provide your MetroCard you will receive $5 off a ticket at the door. Related articles Do you offer a student discount? Where do I redeem my BOGO/discount coupon online? How do I use my ticket purchased through a third party reseller? How long does it take to go around Madame Tussauds? How do I use my Madame Tussauds discount coupon?