Unauthorized charges

This is primarily a user-to-user support forum; other Apple users like you. Click on the links in either of the 2 previous replies and follow the instructions there.

The following link also includes information on contacting Apple Support if the other steps don't help: If you see apple.com/bill, itunes.com/bill, or an unfamiliar charge on your statement - Apple Support

See your purchase history on your iPhone, iPad, or iPod touch

1. Open the Settings app.
2. Tap your name, then tap iTunes & App Store.
3. Tap your Apple ID, then tap View Apple ID. You might be asked to sign in.
4. Scroll to Purchase History and tap it. ... 
5. Find the item, then tap Total Billed.

See your purchase history for the App Store or iTunes Store - Apple Support

See: If you see apple.com/bill, itunes.com/bill, or an unfamiliar charge on your statement - Apple Support