Your account keeps one payment method. It is charged for hosting plans, add-ons and domain renewals, so an invoice can never go to an old card while a domain lapses.
Adding or replacing a card
Go to Billing and use the Payment method card. Card details are entered in an embedded form provided by our payment processor and never touch phas servers; we store only the last four digits and the expiry for display.
Replacing a card takes effect immediately for every future charge.
What happens when you save a new card
Any domain renewal that had failed on the old card retries automatically within a minute. Any domain that reached your account without a card attaches itself to the new one and renews on schedule. You do not need to click anything on the domain's page, though Renew now is there if you want to see the result straight away.
Failed charges
If a charge fails, we email you the reason the card gave and retry on a schedule. For domains see Renewal payment failed. For a hosting plan, several failed retries suspend the plan until the payment clears, and the site comes back on its own as soon as it does.
Removing the card
A card cannot be removed while anything on the account still bills. Cancel the services first, or open a ticket if you are closing the account entirely.