Maestro Global Rules (PDF) - MasterCard

Europe Region
9.2 POS Transaction Types
Whenever an Acquirer identifies an error in the presentment of a
Transaction, it must generate a reversal. There is no time limit for the
Acquirer to issue a reversal, and either a full or a partial reversal may be
generated, as applicable.
If a full reversal is received before the clearing record for the Transaction
has been forwarded to the clearing file, the Transaction will not be included
in the clearing file.
If a partial reversal is received before the clearing record for the Transaction
has been forwarded to the clearing file, the Transaction will be presented
with the correct resulting Transaction amount.
Effective 17 April 2015, the Acquirer of a Merchant located in Italy identified>>
under an MCC listed in the table below must support full and partial
reversals performed at the POI and whenever, for technical reasons, the
Acquirer is unable to communicate the authorization response to the
Merchant, for all prepaid Card account ranges: >>
MCC Description
5310 Discount Stores
5311 Department Stores
5411 Grocery Stores, Supermarkets
5541 Service Stations (with or without Ancillary Services)
5542 Fuel Dispenser, Automated
5612 Women’s Ready to Wear Stores
5691 Men’s and Women’s Clothing Stores
5732 Electronic Sales
5812 Eating Places, Restaurants
5814 Fast Food Restaurants
5912 Drug Stores, Pharmacies
5999 Miscellaneous and Specialty Retail Stores
3. Partial approval.
Effective 11 April 2014, Acquirers must support partial approval for
Merchants located in the United Kingdom and identified with MCC 5542
(Fuel Dispenser, Automated), or with an MCC listed in the table below with
respect to Transactions conducted at attended POS Terminals.
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Maestro Global Rules • 9 November 2012 17-53