(a) If the claimant recovers an original check after he has furnished advice of non-receipt but before receipt of a substitute check, he should immediately notify the disbursing officer or agency concerned and hold the check until receipt of advice from the disbursing officer or agency concerned regarding the negotiability of such original check.

(b) In the event the substitute check has been received prior to the recovery of the original check, the original check should be returned immediately to the disbursing officer.

(c) Under no circumstances should the claimant attempt to cash both the original and substitute check.