Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello, good day and thanks for your question. Sorry to know about this and I understand that you attempted to request for a refund for the Microsoft 365 subscription that you have via Google.
Kindly take note that refund policies varies from platform to platform as it will also be their decision or discretion from their end.
With regards to the confirmation, you can check your account at https://myaccount.google.com/payments-and-subscriptions and have a look from there.
As your subscription is with Google, please take note that Microsoft will not interfere with this and you can also see the official support link below and reach out again to Google to appeal or request again for a refund.