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Billing
Which credit cards do you accept?
  We accept Visa, MasterCard and American Express.
Do I have to pay sales tax?
  No, sales tax is not applied to orders for re-sale to exhibitors.
Where do I get a copy of my invoice?
  For invoices, click the "My Account" tab on the top right of our site and click “Print Invoices”.
When will my credit card be charged?
  Your credit card will be charged within 24 hours of submitting your order.