This article will offer you the information on how to best manage the billing portion of your Shop.
To view your billing information:
Log into your shop
Go to the side menu and click Settings > Billing
The Subscription Details box displays the current plan and monthly cost. The next box shows the current payment method.
Updating the payment method
To add a payment method (Visa or Mastercard) or update the current one:
Click the Add or update card details button.
Enter card details and click Submit.