Subscriptions

See your purchase history for the App Store or iTunes Store https://support.apple.com/en-us/HT204088 to see if the charge was made by Apple. If you have a problem with a subscription or a purchase, see Subscriptions and Purchases https://support.apple.com/en-euro/billing. If you think you may be able to get a refund, then use the request a refund link. It will take you to Request a refund for apps or content that you bought from Apple https://support.apple.com/en-euro/HT204084

See How long refunds from the App Store or other Apple services take https://support.apple.com/en-us/HT210904

If you want to contact Apple support, then use the sites recommended by Eric Root.

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But, I am concerned that you may have been scammed. Apple does not make many billing errors.

Could you have provided any potentially damaging information to anyone? If yes, in your case, you'll need to follow up with, for example, your credit card company Apple, PayPal, etc., 

See the Apple Support article(s) below.

Apple ID - If you see ‘itunes.com/bill‘ or an unfamiliar charge on your bank, credit card, or debit statement.

If necessary, contact iTunes Support. See the Apple Support articles below for contact information.   

iTunes Support – world wide 

Apple Support schedule phone call       

If necessary, try Twitter

https://twitter.com/AppleSupport.          People have posted it may take an hour or more to get a response.