Miscellaneous topics that do not fit into specific categories.
Access your account's order history and see if you find any purchases with the same amount;
https://account.microsoft.com/billing/orders
Also follow these steps to identify the purchase;
https://support.microsoft.com/account-billing/how-to-investigate-a-billing-charge-from-microsoft-398c5328-364c-d5e4-ea8f-f5ad60562a93
Since this is a community forum, we don't have access to account data or information. You can contact Microsoft support so they can help you with this charge.
On your computer, click the Start menu and type Get Help.
Type "Billing" as the keyword > Click the "Contact Support" button.
Then fill out a few more details, after which you will be transferred to speak with an agent.