How can I stop unauthorized charges on my credit card by Apple?

We are all Apple users. like yourself, in this community, so have no access to accounts or details.

The charges may or may not be genuinely from Apple.

Am no expert in this area, yet Apple Support have articles online that may be helpful:

Eg: check these suggestions: If you see 'apple.com/bill' on your billing statement - Apple Support

and

You might want to see how to: Get help with charges from apple.com/bill - Apple Support

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Re: What do I do to stop this please?

If the charges were from others pretending to be Apple:

Scroll to: "How to protect your Apple account and devices" in the Apple support article below:

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Eg: Also says: "If you believe that your Apple Account has been compromised, or if you might have entered your password or other personal information on a scam website, change your Apple Account password immediately and ensure that two-factor authentication is enabled."

Later edit:

Another discussion thread on a similar situation suggests the billing is a known scam, and offers a tip to stop it.:

How can I stop "Apple.com/bill 866-712-77… - Apple Community

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If needed: Apple Account Support website (info. / support / contact options etc.) :

Apple Account - Official Apple Support

and

Billing and Subscriptions Support website:

Subscriptions and Billing - Official Apple Support

or:

See a list of Apple phone numbers around the world

Contact Apple for support and service - Apple Support