If you lost your Capital One credit card, you should call them as soon as possible to report it at (800) 227-4825.
Capital One will immediately lock the lost card so no one else can use it and issue you a replacement card with a new card number. Your Capital One replacement card should arrive within 4-6 business days.
Keep in mind that Capital One and most credit card issuers offer $0 fraud liability. That means that once the fraud is verified, you won't owe anything for unauthorized charges that are made on a lost or stolen card.
The easiest way you can activate your Capital One credit card is online, through either their website or their mobile app. Alternately, you can activate your credit card by calling customer service at (800) 227-4825.
Here’s how to get Capital One to activate your card online:
Website: If you prefer to activate your credit card online, just go to Capital One’s … read full answeractivation page and log in (create an account, if necessary). Then, enter the 3-digit security code on the back of the card when prompted.
Mobile app: To activate your card through the mobile app, sign in with the same information as your online account. Tap your profile, then “Account Settings,” then “Activate Credit Card.” Enter the 3-digit security code when prompted to activate the card. The card will be available to use for purchases immediately after.
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