Maestro Global Rules (PDF) - MasterCard

Asia/Pacific Region
9.2 POS Transaction Types
If proper disclosure is not made at the time of the Transaction and any
merchandise is accepted for return or any services are terminated or cancelled,
or any price adjustment is allowed by the Merchant, the Merchant is allowed to
make a cash refund to the Cardholder, or the Merchant must process an on-line
credit Transaction to the Issuer, and provide the Cardholder a credit receipt
evidencing such refund or adjustment. The Merchant must sign and date each
credit receipt and must include thereon a brief identification of the merchandise
returned, services cancelled or adjustment made and the amount of the credit in
sufficient detail to identify the Transaction.
9.2 POS Transaction Types
9.2.1 Issuer Online POS Transactions
In addition to the Rules in Chapter 9, “Processing Requirements,” Rule 9.2.1 in
part 1 of this rulebook, the following applies:
11. balance inquiry.
9.2.2 Acquirer Online POS Transactions
9.2.2.1 Required Transactions
The following replaces Chapter 9, “Processing Requirements,” Rule 9.2.2.1
(1) in part 1 of this rulebook:
1. Purchase from primary account. (Purchase from account selection from
checking and savings account is optional).
9.2.2.2 Optional Online POS Transactions
The following replaces Chapter 9, “Processing Requirements,” paragraph 4 of
Rule 9.2.2.2 (1.d) in part 1 of this rulebook:
Acquirers are not liable for pre-authorization completions that occurred within
twenty (20) minutes of the initial Transaction that were stored and forwarded
because of technical problems between the Interchange System and the Issuer.
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Maestro Global Rules • 9 November 2012 15-11