Transferring money on Cash App is as quick as a lightning bolt. Your only chance of getting a refund from a payment you did not mean to make is by requesting it from a recipient and hope for the best. Here is how to do it:
Open the Cash App on your smartphone
Click on the clock icon in the bottom right corner
Open the transaction for which you want your funds back
Click on the three dots in the top right corner
Choose the Refund option
Confirm by clicking OK
Hope this helps.