Click your Tolstoy profile → Click Settings
Click the Billing tab.
Click Update information → Update your billing information and click on Save once you're ready.
And that's it! Your next invoice will now contain your new billing information.
Keep in mind that due to Stripe's policies, it's currently not possible to modify existing invoices. However, the new details will apply on your next invoice.
If you encounter any difficulties updating your billing information, don't hesitate to reach out at Support@gotolstoy.com, and we'll get back to you ASAP.