Мастеркард
http://www.mastercard.com/us/merchan..._CB_Manual.pdf
с. 35
"In cases that involve interrupted services where the services are immediately available, the period of 120 days will begin on the date that the services cease. In no case shall the first chargeback exceed 540 days (approximately 18 months) from the Central Site Business Date of the first presentment. The issuer must prorate the chargeback amount to reflect the services received. (Refer to section Example 13—Prorated Chargeback Period for Interrupted Services to determine the proper prorated chargeback period.)"
Виза
http://usa.visa.com/download/merchan...April-2014.pdf
с. 691
"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"
...
