How to check what I'm being charge 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:

https://support.apple.com/en-us/HT201382

This is a user to user forum and Apple is not here. we Have no information about your account. If the instructions in the link at the top of the page did not help, see if this helps: https://support.apple.com/billing