Payment

Do you have a subscription that you haven't cancelled? See: View, change, or cancel your subscriptions - Apple Support

If that doesn't help, the following has a number of items to check and also includes instructions on how to contact Apple Support if needed: If you see 'itunes.com/bill' or an unfamiliar charge on your statement - Apple Support

Then see the following which has a number of items to check and also includes instructions on how to contact Apple Support if needed: If you see 'itunes.com/bill' or an unfamiliar charge on your statement - Apple Support

Also, if the only indication of the charges is from an email or text, be aware that it may be a phishing attempt to get you to log in to a site that appears to be Apple and divulge your password or credit card information. See: Avoid phishing emails, fake 'virus' alerts, phony support calls, and other scams - Apple Support

and Identify legitimate emails from the App Store or iTunes Store - Apple Support