Add a card
You may choose to add multiple payment methods to your profile and select one of them as your default card.
You can manage your payment methods from the billing page in your account settings. Here you can see all of your active payment methods as well as the names of the associated card owners.
After adding a new card you can click the target icon next to it in the list make it the default. This card will now be automatically charged for any future invoices to your account.
You can't remove a card that is configured as the default payment method, you may only remove this card after selecting another card as the default.
Your card will not be charged until you create and use paid services.