Mastercard reason code 4859: what it means and how to respond

What code 4859 means and when it applies

Mastercard 4859, “Addendum, No-Show, or ATM Dispute,” is a legacy code. The current guide allows it for four different types of dispute. The first involves an addendumThis is a separate charge made by the same merchant after a valid transaction, such as an additional hotel or car rental charge. The question is whether the cardholder is responsible for that amount.. The second concerns a no-showThis is a charge for one night plus tax when the guest does not arrive and did not cancel within the hotel’s disclosed policy.. The third covers an automated teller machine problem, or ATMAn automated teller machine dispenses cash. In this dispute, the terminal’s own record shows whether the cash was dispensed and whether the debit matches the disputed withdrawal.. The fourth concerns a loss, theft, or damage charge included in the same transaction as the original service.

The code is still permitted for Dual Message SystemThis is Mastercard’s flow in which authorization and presentment arrive as separate messages. Its reason codes have four digits, such as 4859. transactions outside mainland China, but it will eventually be eliminated. Mastercard recommends 4853 for addendum and no-show disputes and 4834 for ATM disputes and for loss, theft, or damage charges included with the original service. The number 4859 alone therefore does not identify which requirements or evidence apply. The chargeback notice must name the condition.

A separate regional use applies only to Germany-domestic transactions. When a travel service merchant was unwilling or unable to provide the service, the guide also permits legacy code 4859. That condition follows the 4853 chapter and has its own rules.

Source for use and replacement of the code: Mastercard Chargeback Guide, Merchant Edition, pp. 219–220, 350–352, 368–370, 723–724, and 730–732.

Each condition has its own logic:

1. Addendum: all requirements must be met. The cardholder participated in a valid transaction with the merchant; the same merchant later made another charge without the cardholder’s consent; and the cardholder tried to resolve the case with the merchant. Contact is waived only for a corporate customer that has a contract with the merchant, and only for the amount charged above the contract. Addendum disputes do not apply to Maestro transactions.
2. No-show: the context is mandatory, and any one of five failures is enough. The hotel must participate in the Mastercard Guaranteed Reservations ServiceThis is Mastercard’s guaranteed-reservation service for participating hotels. It permits a charge for one night plus tax when the guest does not cancel within the disclosed policy.. In addition, the cardholder canceled the reservation, used the accommodation, received alternative accommodation, was charged more than the disclosed rate, or was not told about the no-show charge. When only the rate differs, only the difference may be disputed. No-show disputes also do not apply to Maestro transactions.
3. ATM: either of two failures is enough. Some or all of the cash debited was not dispensed, or the account was debited more than once for the same withdrawal. This condition does not cover fraud or a Mastercard Commercial Payments AccountThis is a corporate account product identified as MAP in Mastercard records. Its transactions cannot use these ATM or loss, theft, or damage conditions.. When the debits relate to different withdrawals authorized separately, there is no duplicate. The chargeback covers only the amount not dispensed; if no cash was dispensed, it may include the ATM access fee.
4. Loss, theft, or damage: the charge must be in the original transaction. The cardholder says the merchant included the amount in the same transaction as the service that gave rise to the charge. If the amount was charged later in a separate transaction, the dispute is an addendum and follows 4853. This condition does not apply to a Mastercard Commercial Payments Account.

Source for the conditions and their cardinality: Mastercard Chargeback Guide, Merchant Edition, pp. 350–351, 368–370, 723–724, and 730–731.

Who files the dispute and what happens next

The issuer, the bank or institution that issued the card, files the dispute after receiving the cardholder’s claim. For an addendum, the cardholder’s letter, email, or message must document all three cumulative requirements. Alternatively, the issuer may use Form 1221This is the Dispute Resolution Form—Cardholder Dispute Chargeback. The issuer completes it from a conversation with the cardholder to record the claim and the condition’s requirements.. For a no-show, the same documentation identifies which of the five failures occurred and includes the information required for that claim, such as the cancellation number when available. Mastercard does not require a cardholder document to file an ATM dispute. For loss, theft, or damage in the same transaction, the issuer uses a cardholder letter, email, or message or Form 1240This is the Dispute Resolution Form—Point-of-Interaction Errors. The issuer completes it from the cardholder’s claim to record the error at the point of interaction., with a description of the charge.

Addendum and no-show chargebacks may be filed within 120 calendar days of the Settlement DateThis is the date Mastercard records for settlement of the transaction. It is day zero for the time limits of these conditions. or the Central Site Business DateThis is the processing date Mastercard records in its settlement system. It is also day zero for time limits that use this event. of the disputed transaction. For an ATM dispute, the issuer waits five days and files no later than day 120 after the Settlement Date. For loss, theft, or damage included in the original transaction, the deadline is 90 days after the Central Site Business Date.

Source for filing, documentation, and time limits: Mastercard Chargeback Guide, Merchant Edition, pp. 350–351, 368–370, 723–724, and 730–731.

After filing, the acquirer, the institution that represents the merchant on the Mastercard network, may submit a second presentmentThis is the acquirer’s formal response to the chargeback. The acquirer selects a permitted ground and submits records that answer the cardholder’s claim. through MastercomThis is Mastercard’s system where issuers and acquirers submit disputes, responses, and supporting documents.. The standard card-scheme deadline is 45 calendar days from the chargeback Settlement Date or Central Site Business Date. The acquirer or processor may request documentation from the merchant before that deadline.

When the response requires attachments, the acquirer must upload them to Mastercom within eight calendar days after the second presentment is generated. Only the last four digits of the card number may be visible. Documentation not in English must include an English translation.

Source for the second presentment and supporting documents: Mastercard Chargeback Guide, Merchant Edition, pp. 154–156, 352–353, 370–372, 724–726, and 731–732.

If the issuer does not accept the response, the next step depends on the condition. For addendum, no-show, and loss, theft, or damage disputes, pre-arbitrationAt this stage, the issuer requests another review after the second presentment and before taking the case to Mastercard for a decision. is required. The issuer has 30 days to file it; the acquirer has 30 days to accept or reject it; and no response means the acquirer automatically accepts financial liability. After a rejection, the issuer has 15 days to take the case to arbitration.

For ATM disputes, pre-arbitration is optional and Mastercard recommends proceeding directly to arbitration. Even if the issuer chooses the optional step, arbitration must be filed within 45 days of the second presentment.

Source for pre-arbitration and arbitration: Mastercard Chargeback Guide, Merchant Edition, pp. 361–368, 380–387, and 776–783.

How to reduce the risk of code 4859

Because code 4859 combines independent conditions, prevention also depends on the operation:

1. Addendum: obtain and retain authorization for the later charge. Link the amount to the original transaction and retain the contract, final hotel bill, rental agreement, and the record showing why the cardholder is responsible for the additional amount. For loss, theft, or damage, follow Mastercard’s specific requirements for that type of charge.
2. No-show: disclose the policy before the reservation. Record participation in the guaranteed reservation program, the cancellation deadline, the applicable rate, and the notice that one night plus tax would be charged. Keep records of cancellations, use of the accommodation, and any alternative accommodation.
3. ATM: retain the record produced by the terminal. The journal or internal report must allow the acquirer to reconstruct the withdrawal, the dispense result, and the activity immediately before and after it. Before treating two debits as a duplicate, confirm whether they were authorized separately with a PINA Personal Identification Number is the code used to authorize a withdrawal. For this condition, separate PIN authorizations help distinguish two actual withdrawals from a duplicate debit..
4. Loss, theft, or damage: separate the amount and obtain authorization. Do not include the charge in the same transaction as the service without first notifying the cardholder and recording authorization. If the charge is later and separate, retain the link to the original transaction and the evidence required for a valid addendum.

Source for the practices derived from the defense conditions: Mastercard Chargeback Guide, Merchant Edition, pp. 352–353, 371–372, 725–726, and 731–732.