Visa chargeback Reason Code 72 results from processing transactions, which were above the merchant's floor limit, but authorization was not obtained....
Visa uses two-digit numbers called Chargeback Reason Codes to identify the reason a card issuer is disputing the validity of a particular transaction....
MasterCard's chargeback cycle includes: First Presentment, First Chargeback, Second Presentment, Arbitration Chargeback, and Arbitration Case Filing....
MasterCard uses the Global Clearing Management System for transaction clearing - the process of exchanging information between issuers and processors....