Based on many similar posts here, if your purchase history does NOT show the purchase by you or people in your Family Sharing, it is a scam that has been around for 10 years. Scammers spoof Apple and their different locations—Cupertino is the most common but I've seen HollyHill and the Jakarta and Sydney corporate offices as well. Sometimes they use a phone number instead.
If Apple shows no record of the charge in your purchase history, they cannot help. Start with AMEX. When we had similar suspicious charges on AMEX, their personnel had the charges identified as bogus and confirmed my wife's card number been compromised and issued her a new number, all in under 24 hours.
Another senior member found this article:
https://toughnickel.com/scams-fraud/Apple-iTunes-866-712-7753-Scam
and later I found this one:
https://toughnickel.com/scams-fraud/Apple-iTunes-866-712-7753-Scam