The obvious question is does it show on your Purchase History for a legitimate purchase to your account and if using Purchase Sharing you will have the option to view other members who are authorized to make purchases.
View your purchase history for the App Store and other Apple media services - Apple Support
If it does not show there, then that would indicate your card has been compromised, usually through a phishing message or using the physical card in a terminal that had a skimmer installed. For any fraudulent purchase, you should contact the bank of the issued card immediately and dispute those charges. They will also issue you a new card.