Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
To help identify the appropriate process, could you please confirm whether the transaction appears in your Microsoft account's purchase history at https://account.microsoft.com/billing/orders? Please do not share your credit card number or other sensitive payment information.
Additionally, have you tried to investigate unrecognized Microsoft charges using the official instructions at https://support.microsoft.com/accounts-billing/how-to-investigate-a-billing-charge-from-microsoft