Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Helen,
An automatic refund is processed within a few days for the double charge.
In case it does not happen.
If you need more help, please reach out to Microsoft Support.
Please go to the https://support.microsoft.com/contactus page
Type "Billing" and press Enter.
Please click on the "Contact support" button at the bottom.
Select the Product and Category for support based on your requirements.
The available support methods will be shown to you.