I was charged and didn’t sign up for Apple Music

Did you follow the steps in the Support Topic you cam from to find out if you were actually charged?

https://support.apple.com/en-us/HT202039

Also, see:

If you see 'itunes.com/bill' or an unfamiliar charge on your statement - Apple Support

If you were charged use the "Get More help" section:

"If you compare your credit card or bank statement to your purchase history and still don't recognize the charge, contact Apple Support.

If you don't use your Apple ID to make purchases from the iTunes Store or App Store and see charges on your statement, contact Apple for help with Apple ID account security.

If you think you're being billed twice for the same item, it might be a payment authorization holdand not an actual charge. The charge will disappear after your purchase clears."

Clickhereand ask the iTunes Store staff for a refund, or if you got an email receipt, use the Report A Problem link in it.

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