Can you explain to me why are charging me?

We are users like you. We are not charging you anything and we do not have access to your account. You can check your purchase history here: View your purchase history for the App Store, iTunes Store, and other Apple media services - Apple Support

See the Apple Support article(s) below. Link to contact Apple Support in the article.

Apple ID - If you see ‘itunes.com/bill‘ or an unfamiliar charge on your bank, credit card, or debit statement.    *

Hello ~ Take a look here:

Subscriptions and Billing - Official Apple Support

~Katana-San~