I sent money to wrong person

For information on Apple Cash sent to the wrong person, see the following from: Send and receive money with Apple Cash - Apple Support

Cancel or dispute a payment 

1. Open the Messages app, then open the conversation and tap the payment.
2. Your Apple Cash card will open in the Wallet app. Under Latest Transactions, tap the payment, then tap it again.
3. Tap Cancel Payment.

If you don't see Cancel Payment, the person has already accepted the payment. Try asking the recipient to send the money back to you instead.

Depending on your bank or card issuer, it might take 1-5 business days for the money to be refunded. 

Apple Cash person-to-person payments are like any other private transaction between two people, so only send and receive money with people you know. If you have questions or concerns about a transaction, please contact us.

See the “cancel or dispute” section here: Send and receive money with Apple Cash - Apple Support