Lineblocs dashboard can also be used to add a new card, remove a card, or change the primary billing card on your account at any time.
To add a credit card to your Lineblocs account:
in Lineblocs dashboard go to Billing
Click "Add Card"
Enter your card details
Click "Submit"
To change your primary billing card please click the button next to the card.
To remove a card you can click the button next to the card.
For more info on billing matters, please see the articles below: