Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi, good day!
Have you checked Services & subscriptions and Order history while signed in to any other Microsoft accounts you may have used previously? You may have multiple accounts, such as a family member’s account, using the same credit card.
If the subscription still doesn't appear, you can use Microsoft's payment investigation option to identify which Microsoft account and subscription the charge is associated with.
https://support.microsoft.com/en-us/accounts-billing/i-ve-been-charged-twice