I want to refund the $200 that I just sent to esprit on Apple Pay

You cannot get back money sent with Apple Cash. If it hasn’t been accepted you can cancel it, otherwise you need to ask the recipient to return it. Think of it like giving someone cash out or your wallet or purse. Once given there is no way to get it back.

Apple Cash - Official Apple Support

The article above provides a link to how to request a refund.

Request a refund for apps or content that you bought from Apple - Apple Support

Yes, that is how you get refunds for purchases. But you cannot get refunds for money sent to a 3rd party using Apple Cash.