Maestro Global Rules (PDF) - MasterCard

Acquiring
7.4 Acquiring Electronic Commerce Transactions
7.4.1 Acquirer Responsibilities: Electronic Commerce
Transactions
In addition to the requirements documented in Rules 7.1, 7.2 and 7.4,
Acquirers must ensure that all Merchant sites that accept electronic commerce
Transactions:
1. clearly display the Marks on the Web site. The method and size used to
display the Marks must be at least equal to the method and size used for
displaying other payment marks, and must be in accordance with brand
Standards;
2. are capable of accepting PANs between thirteen (13) and nineteen (19)
digits in length;
3. support the passing of authentication data in the UCAF;
4. support 3D Secure Merchant Plug-in, and are capable of handling
Transactions within a 3D Secure environment;
5. provide a set of “help” functions to help Cardholders that have not yet been
enabled by their Issuers for transacting via the Internet;
6. follow best practices in the display of price information, ensuring
Cardholders can clearly identify the amount of currency of the Transactions
that they are authorizing;
7. display details of the timing of billing and fulfillment of Transactions.
An Acquirer must provide each Merchant with a Merchant ID, and ensure that
its Merchants correctly populate all UCAF fields with required data elements.
On an on-going basis, the Acquirer must educate electronic commerce
Merchants to ensure that they understand the special risks and responsibilities
associated with accepting Transactions in an electronic environment. Refer
to the MasterCard SecureCode Acquirer Implementation Guide for more
information.
NOTE
Additional regional Rules and a regional Rule variation on this topic appear in
Chapter 18, “Latin America and the Caribbean Region,” of this rulebook, and an
additional Rule appears in Chapter 19, “South Asia/Middle East/Africa Region,”
and Chapter 20, “United States Region,” of this rulebook.
7.4.1.1 Merchant Requirements: Electronic Commerce Transactions
Each Merchant must:
1. clearly display a mailing address, and a contact telephone number or
2. e-mail address, for customer queries resulting from electronic commerce
Transactions. This information may be displayed on any page within the
Merchant’s Web site, but must be readily accessible to a Cardholder, and
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Maestro Global Rules • 9 November 2012 7-21