You can change your billing options at any time. Learn how by tapping or clicking any of the following articles:
Add or change payment options
Remove payment options
Use PayPal as a payment option
View billing history
Change billing account information
Cancel your subscription
Important If you bought an Office 365 Personal or Office 365 Home subscription through Apple (from the Office Mobile for iPhone app), please go to Manage Office billing and subscription when you buy from Apple for billing and subscription information.