I accidentally sent money to an unknown person

for more information see section titled How to cancel or dispute a payment in the link below

Send and receive money with Apple Cash - Apple Support

If the person accepted the payment and you can't cancel it, then your money is likely gone

I don’t think there’s anything Apple can do to help you. You need to talk to your credit card company and cancel the transaction if you can.

Olivierdamas Said:

"I accidentally sent money to an unknown person: I need a refund im accidentally sent money to unknown person"

-------

Suspect that was this a scam?

If so, Report this to Apple:

Forward a screenshot of the as an attachment to Apple using this eMail address: reportphishing@apple.com. In the comments pane, inform Apple of what the attachment is all about: an eMail containing an attachment of harassment. Use my User Tip: Using the Photos App to Report Scams: - User Tips