Occasionally, the system will pay a duplicate check which bears the same date, the
same amount and is received on the same day as the original check. Whenever the monthly
benefit payment changes, SSA sends a letter of explanation. Thus, in duplicate check
situations, the person who receives an extra check can reasonably be expected to know
that the second check should be returned. A person who does not question the receipt
of a duplicate check will generally be found at fault for the overpayment.
If the duplicate check results from incorrect manual processing, fault will have to
be decided according to the circumstances. Be aware, however, that at the time of
processing, the person will be sent a notice and should be expected to question any
checks that are inconsistent with the notice.