The American Express verification code is the three numbers of back of the card at the end of your account number.
The claim code on an American Express card is typically located on the front of the card, printed on the right side, above the card number. It is a four-digit code that may also be referred to as the card security code or CID (Card Identification Number). This code is used for additional security during online and card-not-present transactions.
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Card Verification Value. A 3-digit security code (except for American Express) which is printed on the back of the card separate from the credit card number, used to verify the user actually has the card with them. In the case of American Express, it is a 4-digit code printed on the front of the card.
There are four digits - on the front of the card.
Postal code in a important factor to post a card or latter.
The validation code is the last 3 digits on the back of the credit card in the signature strip. On American Express cards, the validation code is the 4 numbers that are on the front of the card.
The postal code that appears on a person's debit card will reflect their home or office address. This code may be required by a person if they are making an online purchase.
Its the security number, for amex it is composed of 4 digits..
You can not. The American Zip code system ONLY works over US territory. Canada has its own postal code system as do other countries.
The two have nothing to do with each other.
Probably the post-code of the registered user of the card - to verify you are the legitimate owner !