Mastercard requires cardholders to make a good-faith attempt to resolve disputes with the merchant before proceeding with a claim. If that doesn’t work, please complete a Cardholder Dispute Form under Secure Forms in Online Banking.
Online Banking >> Secure Forms >> Cardholder Dispute Form - Transaction/ATM Error
Cardholder Dispute Form Merchant
You may also reach out to us at 866.873.4968 or visit one of our branches, and we’ll proceed with a dispute claim on your behalf.