Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
First, please feel free to check out the AI answer that is providing really detailed steps.
Since the newer Microsoft 365 purchase was made through Best Buy, first check the receipt or activation email to confirm whether Best Buy manages that subscription. If it does, any cancellation or refund request must be handled directly through Best Buy rather than Microsoft.
Before contacting anyone, make a short list of each email address you may have used and check the Services & subscriptions page while signed in separately with each one. This should help identify which account owns the subscription you want to keep.
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