If you've lost your Sam's Club Business credit card, you can call 1-800-964-1917 or 1-866-220-0254 to report it. Your card will be blocked and you'll be able to request a replacement.
You could also log in to your Sam's Club Credit online account to report it. Click on the Services dropdown menu and select “Report Lost or Stolen Card”. Right below it you'll find the option to request a replacement card.
Even though Sam's...