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Growing Companies
Grow Since 1984
29 Years
Omega Forms & Documents
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Credit Card Authorization
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Visa, MasterCard, and
Discover Users Flip the card over and look at the signature box. You should see either the entire 16-digit credit card number or just the last four digits followed by a special 3-digit code. This 3-digit code is the Card Security Code. |
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| American Express Users Look for the 4-digit code printed on the front of the card just above and to the right of the main credit card number. This 4-digit code is the Card Security Code. |
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