Это правила от 1 января 2013 года
Вот правила от 15 октября 2015 года
Страница 567:
Chargeback Time Limit – Reason Code 30
A Chargeback must be processed no later than either:
● 120 calendar days from the Transaction Processing Date
● If the merchandise or services were to be provided after the Transaction
Processing Date, 120 calendar days from the last date that the
Cardholder expected to receive the merchandise or services or the
date that the Cardholder was first made aware that the merchandise or
services would not be provided, not to exceed 540 calendar days from
the Transaction Processing Date