being charged for iTunes...I don't listen to music on my devises

If it is for Apple Music, see the following to cancel: Manage your Apple Music subscription on your iPhone, iPad, iPod touch, Mac, PC, or Apple TV - Apple Support

If you aren't sure what the charge is for or to report a problem, see: Get help with an item purchased from the App Store, iTunes Store, or iBooks Store - Apple Support

If the only indication of the charges is from an email or text, be aware that it may be a phishing attempt to get you to log in to a site that appears to be Apple and divulge your password or credit card information. Avoid phishing emails, fake 'virus' alerts, phony support calls, and other scams - Apple Support