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: Cardholders can use the Citibank mobile app to select their card and tap "Make a Payment" .

: If you do not use the online payment service for 18 months , you may be required to re-register your bank account information . Learn About the My Best Buy® Credit Card best buy online bill pay service

: Online and phone payments must be submitted by midnight ET to be credited on the same day . : Cardholders can use the Citibank mobile app

: The most direct way to pay is through the Citibank Account Online portal . Once registered with your card details and Social Security number, you can schedule one-time payments or set up recurring AutoPay . best buy online bill pay service