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Citigroup and Credit Card Disputes
Citi customers can now challenge credit card charges in the bank's mobile app. Customers can submit merchant disputes on charges for a range of reasons, including damaged items, returned goods and duplicate charges. The app sends the customers notifications when Citi begins taking action and for other necessary updates. As part of the same upgrade to the mobile app, customers can request credit limit increases, view recurring charges and enroll in paperless statements.

Related:Credit Card Disputes Go Mobile at Citi