How do I request a refund from Apple?

There is an Apple article with information about requesting refunds. Click on the following link: Request a refund for apps or content that you bought from Apple - Apple Support

If the charges are recurring, stop future charges by cancelling: There is an Apple article that explains how to cancel subscriptions. Click on the following link: If you want to cancel a subscription from Apple - Apple Support

If you aren't sure what the charges are for, not that this is primarily a user-to-user support forum; other Apple users like you. We don't have access to information about charges to your account. Apple has a support article about charges — see each of the steps in the following instructions. They include information on contacting Apple Support if the other steps don't help. See: If you don't recognize a charge - Apple Support

or go to Subscriptions and Billing - Official Apple Support

I never purchased this and would like a refund

We don't know what "this" is, and it doesn't really matter anyway since all the steps you need to follow were described in the post from last January.