Canceling a Payment
Cash App to Cash App payments are instant and usually can’t be canceled. To be sure, check your activity feed to see if the payment receipt is displaying a cancel option.
The recipient can also refund your payment. Ask them to:
Tap the Activity tab on their Cash App home screen
Select the payment in question
Tap . . .
Select Refund
Press OK
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Finally, you can use the Request button on your Cash App home screen to ask for the funds back.