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FAQs › How do I add a credit card to my Mystic account, or update the one on file?

How do I add a credit card to my Mystic account, or update the one on file?

You can add a credit card to your account or update the one on file when you place an order or pay for your club membership invoice. Or, call our customer service representatives at 1-800-433-7811 and they will happily update your payment information.

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  • Articles
    • US Stamps
    • Worldwide Stamps
    • Stamp News
    • How to
    • Beginner’s Guide to Stamp Collecting
  • About Mystic
  • Resources
  • FAQs
  • This Day In History