<prompt> Human: Title says it all, but I received an email from someone saying they sent me the cash by mistake. Then I received a money request generated from PayPal requesting the money be returned. I logged into my PayPal account didnt click on any links in the emails and, sure enough, the money is in there. There is a refund button I can click to send it back, but after reading this sub reddit for years Im on high alert. Any concerns here? It seems like a legit error. Thanks!EDIT: I received a message from PayPal through the message center on the PayPal website. It is basically a request on behalf of the sender that I refund his money. Ill probably call PayPal today to confirm, but Im thinking this was a legitimate mistake. Thanks again everyone for your help!EDIT 2: I called PayPal and they confirmed this was a legitimate request for a refund so everything is straightened out now. Thanks again for all of the advice.  <response>: Nope. Dont send anything. Contact paypal and they will start and investigation and they will tell you the results. Do not touch that money. 