A refund from the Cash app or a refund and get my money back from Cash app will be reflected instantly if the wrong recipient agrees to return the money. On the other hand, processing a credit card payment can take 2-7 business days. Go to the Activity tab in the Cash app on your iPhone or Android device. However, tap the payment you want to refund. Touch three points. Click "Return". Click OK and Although, you need to visit our website for more details.