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Throughout the world, its principal business is to process payments between the banks of merchants and the card-issuing banks or credit unions of the purchasers who use the Mastercard-brand debit, …

We are excited to announce the launch of Mastercard's newly redesigned MDES Customer Service application, now live and ready to support customer needs more efficiently than ever.

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Access your Mastercard account to manage transactions, rewards, and benefits securely online.

Jan 13, 2026 · The vast majority of U.S. merchants accept cards on all four networks, but Mastercard and Visa have a slight edge in total acceptance. Mastercard is also widely accepted outside the …

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Mastercard Services supports industry leaders to deliver personalized experiences, build loyalty, drive innovation, and make data driven decisions across their business.

At Mastercard, we're powering economies and empowering people, building a sustainable economy where everyone prospers. As a global technology company in the payments space, we are driven by …