2805 Veterans Highway Unit #14 
Ronkonkoma, New York 11779
Phone: (631)-981-6140 Fax: (631)-585-4858 E-mail: pweinstein@crystalonics.com
CVV2 Code Help
What is the CVV2 Secure code?
The Secure code is a 3 or 4 digit code printed on your credit card. We require this code as a security measure to our customers. Requiring this information helps to ensure that the credit card is present at the time of purchase. If you cannot find this code, or it is illegible, please contact your credit card issuer.
Visa, Mastercard and Discover Cards
The Secure code is the 3 digit value printed on the signature panel located on the back of your card. It is the last 3 numbers in that area.
American Express Cards
The Secure code is the 4 digit value printed (not-embossed) above your account number on the front of your card.
