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Duplicate charge alert

Often, credit card charges are duplicated erroneously by merchants . While some banking websites like Citibank, Amex lets you dispute these duplicate charges online, i was thinking more on the lines of a new feature that would alert the merchant and the credit card holder, through e-mail and/or SMS, whenever a same value gets doubly charged by the same merchant on the same date for the same credit card.

Posted in User Centered Design, Voice of the User - VOU |