Change Credit Card Details
You can manage your credit card payment information from your WordPress.com dashboard area. This is useful if you need to check which credit card will be billed or update it with a different card.
If you have automatic renewal enabled for at least one of your upgrades, in Store → My Upgrades, there will be an “Update Credit Card” link below the upgrade:
If you don’t have automatic renewal enabled for any upgrades, WordPress.com does not have any stored credit card details for you.
If you don’t remember the password and need to recover your login details to access the dashboard, please read the Account Recovery page.