Legal
Disputing a transaction made with Mastercard debit card
You can use the chargeback procedure to object to transactions on your Master Debit Card with our partner SIX.
Chargebacks are possible for various reasons, including where:
you do not receive the goods or services you paid for
the goods or services prove to be defective, counterfeit, or faulty (in such cases, you must send the goods back to receive a chargeback)
you have been charged the wrong amount or charged twice in error
you have been charged a further payment after cancelling a subscription
Chargebacks are not possible where:
the transaction was processed using 3-D Secure
the transaction took place on site via contactless or chip and PIN code
the prescribed deadline for the chargeback procedure (30 days from receipt of the account statement showing the transaction) has expired
the payment is for a subscription that has not been cancelled
the objection relates to the quality of the goods or services
The correct procedure for contesting a transaction:
Contact the retailer first and try to reach an agreement directly
If you are not able to reach an agreement with the retailer, you will have to start a chargeback procedure and submit the objection form
Please note that a maximum of 35 transactions per Mastercard Debit card can be challenged
Gather all available supporting documentation (e.g. emails, information on contact with the retailer, receipts, etc.) and submit this together with the objection form
You can upload the objection form and supporting documentation to www.six-group.com and your application will be processed directly by SIX
Once your documents have been successfully uploaded, SIX will send you written confirmation of receipt by email.
Please note that various parties are involved in the investigation process, and it may therefore take several months before a final decision is made concerning your application. The decision to approve or reject your chargeback procedure is made in accordance with the rules of Mastercard.
Neither SIX nor the card issuer (Mirabaud & Cie SA) are able to influence this decision. There is no guarantee that the retailer will accept the chargeback of the transaction challenged or that the card issuer will be able to credit you for the transaction challenged.
Dispute a debit card transaction now
By clicking on the following link, you can download the dispute form, fill it in and send it back via the SIX website along with the other supporting documents.