: If suspicious activity is detected, Citi may send a text from a verified short code to ask you to confirm a purchase.
Payment account details must be set up on the Best Buy Citi website beforehand.
To set this up, log in to your account at Citibank Online, navigate to the page, and select SMS as your method. Security and Fraud Notifications
You can manage your My Best Buy® Credit Card (issued by Citibank) via text for common tasks like making payments or receiving account alerts. Managing Your Card by Text