A Merchant may request but must not require a Cardholder to provide additional
identification information as a condition of Card acceptance, unless such information is required to complete the Transaction, such as for shipping purposes, or the Standards specifically permit or require such information to be collected.
A Merchant in a country or region that supports use of the Mastercard Address Verification Service (AVS) for Mastercard POS Transactions may require the Cardholder’s ZIP or postal code to complete a Cardholder-Activated Terminal (CAT) Transaction, or the Cardholder’s address and ZIP or postal code to complete a mail order, phone order, or e-commerce Transaction
Ref: https://www.mastercard.us/en-us/about-mastercard/what-we-do/rules.html
Posted 2019-05-04