charges of credit card bill

See the following: See or cancel your subscriptions - Apple Support

If that doesn't help, see this which includes information about contacting Apple: If you see apple.com/bill, itunes.com/bill, or an unfamiliar charge on your statement - Apple Support

Apple TV+ is $4.99 per month in the US, not $11.81.

See my previous reply for information on how to determine what you are being billed fo.