Your billing details live in your account's Subscription area.
Payment method
The Payment method section shows the credit card on file and its expiry.
- To change it, click Update payment method and follow the steps.

Invoices
The Invoices section lists your past payments with the date and amount.
- Click Download next to an invoice to save it.

Invoices appear here once you're on a paid plan.
Account credit — from referrals, for example — is applied automatically to your next invoice, reducing the amount due.