Unauthorized subscription charges on iPhone 14 Pro Max

• Where are you seeing the charge?
• Have you identified what the charge is for in your Purchase History?
• If it does not show in your Purchase History, what is the exact description of the charge you see?
• Who has access to the Passcode on your device?
• Did you start a free trial and forget to cancel it?

If you did start a free trial, there is a message on the screen that requires you to double click the side button that says to avoid the subscription charge, you must cancel a day before the trial period ends. That is the authorization and verifies with FaceID/TouchID or Passcode. Cancelling any subscription/free trial managed by Apple can be done here:

View or cancel app subscriptions on iPhone - Apple Support

If you give the Passcode to your device to someone else, you are responsible for their actions and also have the ability to use Screen Time controls to prevent purchases.

For any purchase in the App Store, you always have the option to request a refund. In most cases all transactions in the App Store are final, but at times Apple may provide a compassionate refund. It should never be expected though.

Request a refund for apps or content that you bought from Apple - Apple Support

You can continue to use your device, you will just not be able to use the App Store to download/update any apps until the payment issue has been resolved.

Where exactly are you seeing this subscription?

Why can't you cancel it?

Does it appear on your payment method's statement as coming from "apple.com/bill"?

Did you download an App with a free trial? If so, those generally turn into paid subscriptions unless cancelled.

If this was an App from the App Store with a free trial that turned into. paid subscription follow the steps in the link below to find and cancel it.

click here ➜ If you want to cancel a subscription from Apple - Apple Support

You won't be able to cancel the actual charge though, once started charges are legal agreements and must be completed. Until you do, you won't be able to access the store services including downloading free apps or updating existing ones. Once it completes successfully, you can request a refund for it.

click here ➜ Request a refund for apps or content that you bought from Apple - Apple Support