Help Center answers
What happens to payments that aren't collected after 30 days?
Payments that are not collected after 30 days are returned to the sender and marked as "Returned" in the Transaction History. PayPal members can manually reverse unclaimed payments before the 30-day automatic reversal.
Members may also reverse unclaimed payments before the 30-day automatic reversal if the recipient has not signed up for PayPal using the email address to which the payment was sent.