The easiest way to cancel a Credit One card is by calling customer service at (877) 825-3242. Another way to cancel your card is to mail the request. Credit One does not offer an option to cancel online. More specifically, you can cancel your Credit One credit card:
Keep in mind that requests by mail will take longer to process.
What to do after you cancel a Credit One card:
When you cancel your Credit One card, you'll still have to pay at least the minimum amount due on any balance each month until it's paid in full. Your account won't be officially closed until you do. Any future transactions that you try to make after cancelling will be declined, but pending transactions may still process. You'll need to update the payment method for any recurring bills you were charging to the Credit One card, too.
Also, make sure to cash in any leftover rewards before canceling your Credit One card, as unredeemed rewards will expire once you close the account.
When to cancel a Credit One credit card:
A primary reason you'd want to cancel a Credit One card is that you simply no longer need it. Credit One cards are designed for people with bad-to-fair credit. They also come with high annual fees. As such, your credit standing may be to the point where you're ready to upgrade to a card with lower fees and more rewards. And because Credit One caters only to a specific group of customers, upgrading to another Credit One card is not really an option.
Keep in mind that when you cancel a Credit One card, your credit score could temporarily take a small hit, depending on the specifics of your credit history.