What forms of payment do you accept? April 22, 2020 14:40 Updated CheckMateMagazines.com currently accepts Visa, MasterCard, Discover, and American Express for all orders. Related articles Can I order samples? Does Check-Mate offer a MIL / LE discount? Can I pay with multiple Visa, Mastercard, American Express, or Discover Pre-Paid Gift Cards? The item I want is out of stock. What do I do now?