For ChatGPT Plus Accounts (chatgpt.com):
To update the billing information linked to your ChatGPT Plus account, please follow these steps:
Visit chatgpt.com.
Click on your name at the bottom left corner of the screen.
Select "My Plan" and then "Manage My Subscription."
Update your information as needed.
For ChatGPT Team Accounts:
To update the billing information linked to your ChatGPT Team account, please follow these steps:
Visit chatgpt.com.
Click on your name at the bottom left corner of the screen.
Select "Manage Workspace" and then "Billing" on the left side of the screen.
Select the "Manage plan" button and update your information as needed.
Please note that the Billing tab can only be viewed by Owners.
For OpenAI API Accounts (platform.openai.com):
If you're an owner of an API organization, you can update your billing information via the API Billing preference panel.