Payment Settings
Payment Settings is where you manage billing contact details, the billing address, and payment methods such as a credit card.

Billing Info
The billing details, including:
- Contact details (email and phone)
- Billing address
- Anything else that applies
Edit, or the equivalent button on the page, updates them.
Payment Method
This section shows the payment methods attached to the account, such as the last four digits of a card and its expiry. The usual actions:
- Adding a credit card (+ Credit Card)
- Setting the default payment method, where the page offers it
- Removing or replacing a payment method, where the page offers it
What you can actually do, and the rules around it, are whatever the page shows.