This guide walks you through how to update your billing information, including changing your payment method and billing details, so your subscription renews without any issues.
For Non-Shopify:
Go to your Account → Click Settings
Go to Plans → Click Manage your Stripe Subscription
Click Update Information
For Shopify
Since Shopify fully manages Tolstoy billing, we unfortunately don't have the ability to update or change any billing information from our application.