I got charged for a payment I do not remember what it is for

This is primarily a user-to-user support forum; other Apple users like you. We don't have access to information about charges to your account. See each of the steps in the following instructions. They include information on contacting Apple Support if the other steps don't help: If you see 'apple.com/bill' on your billing statement - Apple Support

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If you see 'apple.com/bill' on your billing statement - Apple Support