How to stop unauthorised Payments on my card

Hello,

Please go to your Settings > Click on your Name > Media & Purchases > Purchase History. If you can't find those charges here you need to Contact - Official Apple Support.

Hope this helps! ☆

Mateusz

Also view and manage your subscriptions here:

View or cancel app subscriptions on iPhone - Apple Support

Are you the Organizer of a Family Plan? If the Family Plan uses Purchase Sharing, then other family members are authorized to make purchase on your payment method.