Would like a refund for Amazon Music

After a free trial you are automatically subscribed unless you cancel it. The first thing to do is to cancel the subscriptions so that there are not further charges. Please see:

Manage your Apple Music subscription - Apple Support

View, change, or cancel your subscriptions - Apple Support

As to refunds, strictly speaking all purchases are final (after all, you can't very well return them): please see this page for information on requesting a refund: Request a refund for an App Store or iTunes Store purchase - Apple Support

However Apple have been known to be sympathetic in cases of actual error (though I don't know whether failing to read the documentation would be acceptd); it's possible that they may allow you a refund as a one-off concession: but please be aware that they are under no obligation to do so: go to iTunes Store - Contact Us - Apple Support

Alternatively go to the page suggested in the Help page linked to above: Report a Problem

Apple does not sell Amazon Music. Go to Amazon.com to resolve the problem.

For Apple Music see:

Manage your Apple Music subscription - Apple Support

Apple Music - Apple Support

View, change or cancel your subscriptions - Apple Support.

To request a refund for a charge you don't recognize, check your purchase history and follow the steps below.

FYI: These are user-only forums. Apple is not here. Thank you for your understanding and support.