Why am I being charged even though I don't have active subscriptions?

If you do not see the charge in your purchase history, you may have found that your card has been compromised. In that case, you would need to contact the bank that issued the card. Review this article:

https://discover.hubpages.com/money/Apple-iTunes-866-712-7753-Scam

Follow the steps in the support document linked below to identify the charge.

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