How Credit Card Numbers Are Determined
The card number itself comes from ISO 7812/7816 standards. The first digit on the
card will tell you what category it is in per the standards. Four and five identifies
the card as banking and financial and six identifies the strip as merchandizing
and banking. Three is actually travel and entertainment. The number itself has a
structure to it - the first six digits being the Bank Identification Number (BIN).
The method for determining a valid credit card number is known as the mod-10
or Luhn's method (named after the inventor Hans Peter Luhn). The United
States issued a patent (2950048)
for this method in August 1960.
MasterCard
MasterCard will usually begin with 51-55 with 16 digits. Usually the first six
digits is the BIN and the next nine digits are your account number.
Visa
Visa credit card numbers will begin with a four and have 13 or 16 digits. It
can be presumed though that most cards issued with the Visa logo will have 16 digits.
Usually the first six digits is the BIN and the next nine digits are your account
number.
American Express
American Express will usually begin with a 34 or 37 and have 15 digits.
You can also check out the
American Express Merchant Reference Guide (October 2010).
Diner's Club
Diner's Club will usually begin with 300-305, 36, or 55. Those beginning with a 36 should
have 14 digits will those beginning with 55 will have 16 digits. Keep in mind that
in the last quarter of 2004,
MasterCard and Diner's club formed an alliance. Cards issued in Canada and the
USA start with 55 and are treated as MasterCards worldwide. International cards
use the 36 prefix and are treated as Mastercards in Canada and the US, but are treated
as Diner's Club cards elsewhere.
Discover Card
Discover Card card will usually begin with 6011 and have 16 digits. Check out
Standard Security Features Common to Discover Network Issued Credit Cards for
more information.
There are a few other organizations like JCB, Maestro, Solo, Switch, Visa
Electron that can be found, however a lot of these are debit cards which might
require a personal identification number (PIN) to be used with the transaction.
The last digit of the credit card is known as the check digit - this helps
the credit card to be verified properly. The digits between the BIN and
the last digit are the account number for the individual.
Non Receipt of Goods or Services Chargeback Codes
There is only one chargeback reason code in this group. These chargebacks can happen
from time to time if the consumer claims the services were not provided or the goods
were not delivered - maybe even not received in a timely fashion.
Reason Code 30: Services Not Provided or Merchandise Not Received
Reason Code 30 can happen when card issuer receives a claim from a cardholder the
merchandise or services ordered were not received or the cardholder cancelled the
order as the result of not receiving the merchandise or services by the expected
delivery date.
The most common causes is when the merchant:
- Did not provide the services
- Did not send the merchandise
- Billed for the transaction before shipping the merchandise
- Did not send the merchandise by the agreed-upon delivery date
Notified of a Chargeback
If the merchandise was delivered by the agreed-upon delivery date, contact the merchant
account provider with details of the delivery or send your merchant bank evidence
of delivery, such as a delivery receipt signed by the cardholder or a carrier's
confirmation that the merchandise was delivered to the correct address. If the merchandise
was software that was downloaded via the Internet, provide evidence to your merchant
bank that the software was downloaded to or received by the cardholder.
If no delivery date has been specified, and the card issuer charged back the transaction
less than 30 days from the transaction date, send a copy of the sales receipt to
your merchant bank pointing out that 30 days have not yet elapsed. You should also
state the expected delivery date.
If the specified delivery date has not yet passed, return the chargeback to your
merchant bank with either information or a copy of the documentation showing the
expected delivery date. In general, you should
not deposit sales receipts until merchandise
has been shipped. For custom-made merchandise, you may deposit the entire
transaction amount before shipping, provided you notify the cardholder at the time
of the transaction
If the merchandise was shipped after the specified delivery date, provide your merchant
bank with the shipment date and expected arrival date, or proof of delivery and
acceptance by the cardholder.
If the contracted services were rendered, provide your merchant bank with the date
the services were completed and any evidence indicating that the customer acknowledged
receipt.
To Help Prevent Chargeback Reason Code 30
If delivery of merchandise is to be delayed, notify the customer in writing of the
delay and the expected delivery date. As a service to your customer, give
the customer the option of proceeding with the transaction or cancelling it (depending
on your customer service policy).
If you are shipping merchandise without requesting proof of delivery, consider the
costs and benefits of doing so compared to the value of the merchandise you ship.
Proof of delivery - such as certified mail or a carrier's certification that the
merchandise was delivered to the correct address and signed for by the cardholder
- will allow you to return the chargeback if the customer claims the merchandise
was not received.
If you sell software that can be downloaded via the Internet, it is suggested that
you design your web site to enable you to provide evidence to the merchant account
provider that the software was successfully downloaded and received by the cardholder.
You might even consider using extra scrubbing techniques like Verified By Visa and
MasterCard Secure Code and using fraud protection services.
Cancelled or Returned Chargeback Codes
These chargebacks from Visa can easily be prevented by the merchant as long as the
merchant provides timely refunds to the cardholder. If you sell items via the internet,
keep the communication open with the consumer to also help prevent chargebacks of
this nature.
Reason Code 41: Cancelled Recurring Transaction
This usually happens when the cardholder notifies the issuing bank and tells them
the recurring transaction was cancelled but the merchant is still charging the cardholder;
transaction amount exceeds the pre-authorized dollar amount range; or the merchant
was supposed to notify the cardholder prior to processing each recurring transaction
but has not done so.
The most common causes are:
- Cardholder
- Withdrew permission to charge the account
- Cancelled payment of a membership fee
- Cancelled the card account
- Card Issuer
- Charged back a previous recurring transaction, and the cardholder did
not expressly renew
- Cancelled the card account
- Merchant
- Received notice before the transaction was processed that the cardholder
account was closed
- Exceeded the pre-authorized dollar amount range and did not notify the
cardholder in writing within ten days prior to processing the transaction
- Notified the cardholder in writing within 10 days of processing the
recurring transaction, after which the cardholder notified the merchant
not to charge the account
Notified of a Chargeback
If the transaction was cancelled and credit issued for the recurring transaction,
notify your merchant bank of the date that the credit was issued. If the transaction
was cancelled and a credit was not issued, accept the chargeback. Do not issue a
credit since the chargeback has already been processed.
If the transaction was not cancelled or you have no record of the cancellation,
accept the chargeback. The cardholder does not have to supply evidence that you
received the cancellation notice.
If the customer claimed they were billed for the service after they cancelled, notify
your merchant bank that the bill in question covered services used by the customer
between the date of the customer's prior billing statement and the date the customer
requested cancellation. You might also need to provide proof as well.
Reason Code 53: Not as Described or Defective Merchandise
This can happen when the cardholder notifies the card issuer that the goods and
/ or services were:
- Not the same as shown and described on the screen for Internet transactions,
or as described on the sales receipt or other documentation presented to the
cardholder at the time of the transaction
- Not the same as the merchant's verbal description for a telephone transaction
- Shipped to the cardholder and received, but was damaged or defective
Note
Merchants should keep in mind that their return policy has no bearing on disputes
that fall under Reason Code 53: Not as Described or Defective Merchandise.
For this reason code, the cardholder must have made a valid attempt to resolve the
dispute or return the merchandise. A valid attempt to return may be to request that
the merchant come retrieve the goods at their own expense.
The most common causes are:
- The merchant sent the wrong merchandise to the cardholder
- The merchandise was damaged during shipment
- The merchant inaccurately described the merchandise or services
- The merchant did not cancel the services purchased by the cardholder
- The merchant did not perform the services as described
- The merchant did not accept the returned merchandise
- The merchant accepted the returned merchandise but did not credit the cardholder's
account
If credit was processed and merchandise was returned or services were cancelled
and a credit was processed to the cardholder's account, provide your merchant bank
with information or evidence of the credit.
Some Possible Remedies for Chargeback Reason Code 53
- If you have not received the returned merchandise (double-check your incoming
shipment records to verify) or the cardholder has not cancelled the service,
advise your merchant bank. (The cardholder must make a valid attempt to return
merchandise or cancel the service.)
- If the merchandise was as described, provide your merchant bank with specific
information and invoices to refute the cardholder's claims.
- If merchandise was returned because it was damaged, provide evidence that
it was repaired or replaced.
- If the service performed was as described, provide your merchant bank with
as much specific information and documentation as possible refuting the card-holder's
claims.. It is recommended that you specifically address each and every point
the cardholder makes
If the cardholder's complaint is valid and you received the returned merchandise
but have not yet credited the cardholder's account, accept the chargeback. Do not
process a credit since the chargeback has performed this function.
To Help Prevent Chargeback Reason Code 53
- Ensure that descriptions of merchandise or services shown in catalogs, on
Internet screens and sales receipts, or used in telephone order-taking scripts
are accurate, complete, and not unintentionally misleading.
- Regularly review your shipping and handling processes to ensure that orders
are being filled accurately.
- Train staff on proper procedures on taking and filling orders, and schedule
review sessions at least annually.
Miscellaneous Information on Chargeback Reason Code 53
- Chargeback Amount Is Limited - The chargeback amount is limited to the amount
of the merchandise returned or services cancelled . The chargeback may include
ship-ping and handling fees for shipment of the defective merchandise.
- Card issuer Waiting Period - If merchandise was returned, the card issuer
must wait at least 30 calendar days from the date the cardholder returned the
merchandise (to allow sufficient time for you to process a credit to the cardholder's
account) before generating a chargeback.
- Quality Disputes - This chargeback code also may be used for quality disputes
(for example, a car repair situation).
Reason Code 85: Credit Not Processed
This can happen when the card issuer received a notice from a cardholder acknowledging
participation in a transaction for which goods were returned or services cancelled,
but the cardholder has not received a written refund acknowledgement or credit voucher
from the merchant or the credit has not appeared on the customer's Visa statement.
Some Possible Remedies for Chargeback Reason Code 85
The merchant
- Did not issue a credit
- Issued the credit but did not deposit the credit with its merchant bank
in time for it to appear on the cardholder's next statement
- Did not issue a credit because the business does not accept returns, but
did not properly disclose its return policy
To Help Prevent Chargeback Reason Code 85
If you never received, or accepted, returned merchandise or a cardholder's cancellation,
advise your merchant bank immediately. Proof of cancellation is not required from
the cardholders. If the cardholder returns merchandise or cancels services in a
manner contrary to your disclosed return or cancellation policy, provide your merchant
bank with documentation showing that the cardholder was aware of and agreed to your
policy at the time of the transaction. Specifically, the cardholder's signature
must appear on a sales receipt or other
document stating your return policy.
If your establishment's return policy is on the back
of a receipt that has been signed on the front and initialed on the back as required
by Visa policy, you must provide your merchant bank with copies of both sides of
the receipt. If the return policy is on the back of the receipt and is not signed
or initialed, you have not provided evidence of proper disclosure
If a customer returns merchandise or cancels services in accordance with your disclosed
return or cancellation policy, and you have already issued a credit, inform your
merchant bank of the date that the credit was issued.
If a customer returns merchandise or cancels services in accordance with your disclosed
return or cancellation policy, and if you have not already issued a credit, accept
the chargeback. Do not process a credit since the chargeback already has performed
this function.
Card Not-Present Transactions
Ensure that your establishment's return or refund policy is always clearly stated
in your printed advertising materials, catalog and catalog order forms, and, for
Internet merchants, on your electronic order screen. Always explain your policy
to customers who place orders by phone. Be sure to include refund information with
the initial transaction. For Internet transactions, your web site should include
a screen with your return or refund policies, which appears automatically during
the check-out process (that is, it is not on a separate disclosure screen that the
customer has to click to open). The screen should include I Accept or Agree buttons
for the customer to click on before completing the transaction, indicating that
he or she has read and agrees to your policies.
Describing your return policy in a catalog or verbally on the phone does not constitute
proper disclosure unless you also obtain a customer signature indicating disclosure
was provided. Such policy descriptions may support your case for having alerted
the customer to your policy.
If a cardholder can complete an Internet transaction
without clicking an Accept or Agree button to indicate acceptance of your refund,
return, or cancellation policy, proper and adequate disclosure has
not occurred.
Gift Returns
In cases where a gift recipient has returned a gift ordered by mail, telephone,
or Internet, you may provide a cash or check refund, an in-store credit receipt,
or another appropriate form of credit to the gift recipient. If the cardholder claims
a credit was not issued to his or her account for the gift, provide appropriate
documentation or information to your merchant bank that the credit was given to
the gift recipient.
For gift returns, if credit is to be used to a charge
card, the credit must be issued to the same Visa account number that was used for
the original transaction.
No-Return Policy Disclosure
If your business has a limited return policy or does not allow returns at all, the
words "no returns" or similar words must be preprinted on all copies of the sales
receipts near the cardholder signature line.